G. Vijaya Prakash

Scopus Publications

Structurally Modulating the Upconversion Emission and Superparamagnetism in KLa(Gd)F4:Er3+/Yb3+ Nanoparticles
Ib Singh Deo, Gaddam Vijaya Prakash, Mohini Gupta
Journal of Physical Chemistry C, 2026
Compositional tuning in KLa(Gd)F4:RE3+ nanoparticles reveals a strong correlation among crystal phase, upconversion emission, and magnetic response. In the systematic compositions of KLa(0.79–x)GdxF4:1% Er3+/20% Yb3+ (x = 0–0.5), the progressive Gd3+ substitution induces a transformation from a cubic to a hexagonal crystal phase. This phase evolution governs the upconversion photoluminescence under 980 nm excitation, producing pronounced color switching from yellow to red emissions. The nanoparticles simultaneously exhibit composition-dependent magnetic behavior, transitioning from paramagnetism at room-temperature to superparamagnetism at 5 K, with the fully hexagonal composition (x = 0.50) reaching a saturation magnetization of 105.74 emu g–1. Electron paramagnetic resonance confirms that higher Gd3+ content strengthens magnetic interactions between neighboring Gd3+ ions. The present comprehensive understanding of structural, upconversion emission and magnetic features enable the rational design of multifunctional lanthanide nanomaterials with implications for bioimaging, theranostics, and optoelectronic technologies.
Unusual Nonlinear Optical Absorption Dispersion in a:SiNxAperiodic Photonic Structures
Albin Kuriakose, Pankaj Srivastava, G Vijaya Prakash
ACS Applied Materials and Interfaces, 2026
The strong confinement of electromagnetic fields in photonic crystals influences light–matter interactions and is utilized for the generation, control, and manipulation of light at desired frequency bands. Here we demonstrate the unusual nonlinear optical responses of a:SiNx-based spatially inhomogeneous quasi-periodic optical microcavity during intense femtosecond laser propagation. Aperiodic microcavities are realized using two quarter-wavelength nonstoichiometric Si- and N-rich a:SiNx layers having contrasting refractive indices and bandgaps. The photonic miniband region of the aperiodic microcavity was probed with high-intensity femtosecond laser using wavelength-dependent (740 to 900 nm) and angle-resolved studies at the miniband edge (∼750 nm). The studies reveal unusual switching from one-photon-induced saturable absorption (SA) of defect-mediated energy levels to two-photon-induced reverse saturable absorption (RSA) around the photonic miniband edge. The strong overlap of the symmetric photonic confinement with the highly dense defect energies of fractal N-rich low refractive index a:SiNx layers (3L) directly expedites such anomalous nonlinear optical switching. Extensive optical field simulations and comparative studies with its periodic microcavity counterpart strongly support the unusual nonlinearities. The fractal effect-induced resonant photonic modes in an aperiodic microcavity lead to unpredictable nonlinear optical responses, which establishes a novel and versatile route for photon manipulation and control. Thus, the present study provides deep insights into many different geometrical dominances in the evolution of photonic modes and consequent nonlinear responses, which further modulate photonic device capabilities.
Synthesis, photophysical, and electrochemical properties of β-substituted imidazole-appended metalloporphyrins and their NLO application
Sumit Kumar Yadav, Albin Kuriakose, Shivani Rathi, G. Vijaya Prakash, Muniappan Sankar
Dalton Transactions, 2026
A series of β -phenanthroline-appended porphyrins, MTPP(Phen) (M = 2H, Co, Ni, Cu, Zn), was synthesized for NLO studies. CoTPP(Phen) showed the highest TPA coefficient and cross-section due to its redox-active metal center.
Morphology-Tuned Photoluminescence in Eu3+Doped β-NaYF4Microcrystals Prepared by a Facile Soft-Templated Route
Ipshita Majumdar, Ib Singh Deo, Vaishali Sethi, G. Vijaya Prakash, Ashok K. Ganguli
Journal of Physical Chemistry C, 2026
NaYF4 is commonly recognized as a superior host lattice for luminescent materials due to its low phonon energy, high chemical stability, and polymorphic flexibility. In particular, the hexagonal β-NaYF4 phase is preferred for both up- and down-conversion optical applications. Here, we report a facile microemulsion-based, low-temperature (ranging from 60 to 90 °C) synthesis of β-NaYF4 doped with Eu3+ ions. Unlike conventional high-temperature methods or ligand-assisted low-temperature techniques, our approach enables phase-pure β-NaYF4 formation without requiring postsynthetic treatments. The synthesis temperature significantly influences the resulting morphology, with the microcrystals transitioning from spindles to ellipsoids and, finally, hexagonal rods. These morphological changes are systematically correlated with the photoluminescence characteristics of Eu3+, including emission intensity, asymmetry ratio (5D0 → 7F2/5D0 → 7F1), and emission lifetime. The results demonstrate how the synthesis temperature in the microemulsion reaction media can effectively tailor anisotropic growth and local asymmetry in β-NaYF4, which in turn affects the radiative and nonradiative energy transfer from the Eu3+ sites.
Synthesis, Characterization, and Redox Properties of Electron-Deficient Porphyrins with Dual Applications
Varusha Bhardwaj, Albin Kuriakose, Gaddam Vijaya Prakash, Muniappan Sankar
Inorganic Chemistry, 2025
To investigate the optoelectronic properties of extensively electron-deficient porphyrins, a series of mixed functionalized porphyrins with adjacent nitro (−NO 2 ) and cyano (−CN) functional groups at the β-pyrrolic positions were designed and synthesized via nucleophilic substitution reactions. The synthesized porphyrins were characterized by several spectroscopic techniques and confirmed by single-crystal X-ray diffraction analysis. The electron-deficient nature of porphyrins, as highlighted by their redox properties, makes the macrocycle a selective optical sensor for cyanide ions with a limit of detection of nearly 1 ppm. Furthermore, porphyrins were evaluated for their nonlinear optical responses. Femtosecond laser intensity-dependent third-order nonlinear optical studies were performed using a laser with the following specifications: 800 nm, 120 fs, and 84 MHz at an intensity of 3.0 × 10 13 W/m 2 . Among all analyzed porphyrins, free-base porphyrins exhibited higher nonlinear coefficients compared to metalated porphyrins. Moreover, highly substituted porphyrins showed high nonlinear coefficient values. 3-H 2 shows the highest (∼119 × 10 –11 ) two-photon absorption coefficient (β) and the highest negative nonlinear refractive index (−28.2 × 10 –17 ), making it suitable for optical limiting applications.
Photonic Band Effects on the Optical Nonlinearities of a:SiNx-Based 1D Photonic Architectures
Albin Kuriakose, Jitendra Nath Acharyya, Pankaj Srivastava, G. Vijaya Prakash
ACS Applied Materials and Interfaces, 2025
Meticulously engineered nonstoichiometric a:SiN x -based photonic structures, such as optical microcavities, facilitate the emergence of pronounced photonic states that are predominantly influenced by defect and interface energies, resulting in diverse and complex electron-photon interactions. In this study, we present third-order nonlinear optical investigations on a:SiN x -based optical microcavities employing femtosecond lasers across a broad wavelength range of 740–900 nm to examine the effects associated with photonic band edges, which are contingent upon defect and interface energies. The dispersion of nonlinear absorption (β) and the nonlinear refractive index ( n 2 ) through wavelength- and angle-dependent studies strongly correlate with linear angular photonic mode dispersion. Intensity-dependent nonlinear assessments provide a variation of impact with the photonic band edge effects. The strong optical field confinements and layer-by-layer nonlinearities show substantial effects on the effective optical nonlinearities in the spectral domain. Such a significant impact of photonic modes and the marked dependence of the nonlinear optical properties on optical microcavity structures highlight promising avenues for designing various photonic interconnects suited for both linear and nonlinear optical applications.
Optical nonlinearities and ultrafast absorption dynamics in structurally tunable a:SiNx thin films
Albin Kuriakose, Jitendra Nath Acharyya, Mohammad Adnan, Pankaj Srivastava, Venugopal Rao Soma, G. Vijaya Prakash
Optics and Laser Technology, 2025
Optical exciton features in structurally diverse phenyl group-based inorganic-organic hybrid semiconductors
Mohammad Adnan, Kshetra Mohan Dehury, Albin Kuriakose, G. Vijaya Prakash
Journal of Applied Physics, 2025
A novel series of inorganic–organic (IO) hybrid semiconductors with varying crystal dimensions and structural reorganizations, arising from the unusual conformation of organic ammonium cation (R–NH3)+ within the MX6 inorganic octahedral networks, are investigated. Here, we report the systematic investigations of exciton behavior in a new IO hybrid series resulted out of phenyl group-based R = (C6H5–(CH2)n–NH3)+ (n = 1–4) organic moieties interactions with inorganic lead iodide (PbI2). The resultant IO hybrid semiconductors of n = 1 and n = 2 show an infinitely extended corner-sharing PbI6 octahedral 2D network, resembling natural multiple quantum wells, whereas the rest show staggered with edge sharing layered networks. Consequently, these hybrids demonstrate strong room-temperature Mott-type excitons having structural dependency. One-photon (1PA, ħω ≥ Eg) and two-photon (2PA, 2ħω ≥ Eg) absorption-induced photoluminescence (PL) studies highlight the presence of different types of excitons associated with variations in their bandgaps. The comprehensive analysis of transient absorption studies and PL spectral mapping reveal many important features of exciton behavior, specifically about their structural dependency, excited-state charge carrier dynamics, and relaxation pathways.
Electron deficient β-trisubstituted porphyrins: synthesis, structural, spectral, and electrochemical studies and their intensity-dependent third-order nonlinear optical properties
Reena Jangra, Amritha J. Nair, Albin Kuriakose, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Dalton Transactions, 2025
Electron-deficient β-trisubstituted porphyrins MTPP(NO2)(CF3)2 (M = 2H, Co, Ni, Cu, Zn) exhibited strong two-photon absorption and negative nonlinear refraction, indicating their potential application in optoelectronics.
Meso-β Monofused Porphyrins: Synthesis, Structural, Spectral, Electrochemical and DFT Studies and Their Efficient Third-Order Nonlinear Optical Properties
Amir Sohel Bulbul, Reena Jangra, Albin Kuriakose, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Chemistry A European Journal, 2025
Three new series of β‐to‐ortho‐phenyl monofused porphyrins, denoted as MMFP(MN)X2 (where MFP=monofused porphyrin, MN=malononitrile and X=H or Br) and MMFP(MN)MB (where MB=mono benzo, M=2H, Co(II), Cu(II) and Zn(II)) were designed and successfully synthesized with good yields. These compounds were thoroughly characterized using various spectroscopic techniques and single crystal X‐ray diffraction (SCXRD) analysis. Notably, three of the monofused porphyrins; CoMFP(MN)Br2, CuMFP(MN)Br2 and ZnMFP(MN)MB crystallized unambiguously in a triclinic crystal system with a space group. The twist angle values for these structures ranged from 14.03° to 21.35°. The meso‐β peripheral fusion and substituents led to tunable electronic spectral features across the synthesized porphyrins. The first reduction and oxidation potentials of all the investigated monofused porphyrins exhibited significant anodically shift as compared to their parent tetraphenylporphyrins (TPPs), attributed to peripheral fusion and electron‐withdrawing substituents, which collectively led to a reduced HOMO–LUMO gap. Ultrafast third‐order nonlinear optical (NLO) studies revealed that these monofused porphyrins showed a strong two‐photon absorption coefficient (β=0.18–39.06×10−11 m/W) and effective cross‐section ( =0.03–8.05×105 GM) values along with self‐defocusing negative nonlinear refraction behaviour (n2=(−)0.5–5.28×10−16 m2/W). These findings open new avenues for the application of meso‐β fused porphyrins in optical limiters, optical devices and other optoelectronic applications.
Structural Investigation and Optical Properties of Dysprosium (Dy3+) Ions Doped Oxyfluoro Antimony Borate Glasses for Photonics Applications
Ch. Pravallika, K. Swapna, Ib Singh Deo, Sk. Mahamuda, M. Venkateswarulu, A. S. Rao, Vijaya Prakash G.
Journal of Fluorescence, 2025
Corrigendum to “Tethering inorganic luminous upconverting nanoparticles with macromolecular chains using silica functionalized with RAFT agent” [Mater. Today Commun. 33 (2022) 104806](S2352492822016476)(10.1016/j.mtcomm.2022.104806)
Tina Joshi, Mohini Gupta, Supriya Mehta, Neetu Singh, G. Vijaya Prakash, Leena Nebhani
Materials Today Communications, 2025
Nanosecond laser induced periodic silicon microstructures for broadband antireflective applications
Albin Kuriakose, Pariksha Malik, Jitendra Nath Acharyya, Dinesh Kalyanasundaram, Pankaj Srivastava, G. Vijaya Prakash
Optics and Laser Technology, 2024
A review on photoluminescence phosphors for biomedical, temperature sensing, photovoltaic cell, anti-counterfeiting and white LED applications
Sumandeep Kaur, Harpreet Kaur, A.S. Rao, G. Vijaya Prakash
Physica B Condensed Matter, 2024
Synthesis, Structural, Electrochemical, and DFT Studies of Highly Substituted Nonplanar Ni(II) Porphyrins and Their Intensity-Dependent Third-Order Nonlinear Optical Properties
Amir Sohel Bulbul, Albin Kuriakose, Komal, Reena, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Inorganic Chemistry, 2024
Light Emitting Rare Earth Doped K3GdF6:Eu3+ for Spectral Mapping/Imaging Studies
Ib Singh Deo, Mohini Gupta, G. Vijaya Prakash
ACS Applied Optical Materials, 2024
Hysteretic Piezochromism in a Lead Iodide-Based Two-Dimensional Inorganic-Organic Hybrid Perovskite
Paul Steeger, Mohammad Adnan, Thorsten Deilmann, Xiang Li, Susanne Müller, Katarzyna Skrzyńska, Michael Hanfland, Efim Kolesnikov, Jutta Kösters, Theresa Block, Robert Schmidt, Ilya Kupenko, Carmen Sanchez-Valle, G. Vijaya Prakash, Steffen Michaelis de Vasconcellos, Rudolf Bratschitsch
Journal of the American Chemical Society, 2024
Structurally influenced optical nonlinearities and ultrafast dynamics in β-acroleyl- and β-dicyanobutadienyl-appended cobalt corroles
Inderpal Yadav, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Physical Chemistry Chemical Physics, 2024
Photonic Band Gap and Fractal Resonances in Aperiodic Cantor-like Self-Similar a:SiNx Photonic Structures
Albin Kuriakose, Jitendra Nath Acharyya, Pankaj Srivastava, G. Vijaya Prakash
ACS Applied Optical Materials, 2024
Syntheses, structural, photophysical and theoretical studies of heteroleptic cycloplatinated guanidinate(1−) complexes bearing acetylacetonate and picolinate ancillary ligands
Vasudha Thakur, Jisha Mary Thomas, Mohammad Adnan, Chinnappan Sivasankar, G. Vijaya Prakash, Natesan Thirupathi
Rsc Advances, 2024
Ultrafast Dynamics, Optical Nonlinearities, and Chemical Sensing Application of Free-Standing Porous Silicon-Based Optical Microcavities
Mohd Shanu, Jitendra Nath Acharyya, Albin Kuriakose, Dipanjan Banerjee, Venugopal Rao Soma, G. Vijaya Prakash
ACS Applied Materials and Interfaces, 2024
Spectrally resolved nonlinearities within a laser pulse in a single-scan and spectrometer-based nonlinear optical probing
Jitendra Nath Acharyya, Albin Kuriakose, G. Vijaya Prakash
Optics Letters, 2024
Up- and Downconversion Dual-Mode Excitation Spectral Studies of Rare Earth Doped KLaF4 Nano Emitters for Biophotonic Applications
Ib Singh Deo, Mohini Gupta, G. Vijaya Prakash
Journal of Physical Chemistry C, 2023
Germylenes Exhibiting Solid-State Emissions that Extend to NIR
Pratima Shukla, Jitendra Nath Acharyya, Pritam Mahawar, Hemant Kumar, Prakash Chandra Joshi, Vivek Kumar Singh, G. Vijaya Prakash, Selvarajan Nagendran
Chemistry A European Journal, 2023
Real-Time Monitoring of Progressive Crystal Phase Transformations and Associated Multi-Phase Optical Exciton Dynamics in Mixed (2D/3D) Inorganic-Organic Hybrid Semiconductors
Pawan K. Kanaujia, Mohammad Adnan, Kshetra Mohan Dehury, Mohammad Akram, G. Vijaya Prakash
Chemistry of Materials, 2023
Push–pull octaphenylporphyrins with mixed substituents pattern: Synthesis, redox, ultrafast dynamics and nonlinear optical studies
Soni Kumari, Inderpal Yadav, Jitendra Nath Acharyya, Mohd Shanu, G. Vijaya Prakash, Muniappan Sankar
Dyes and Pigments, 2023
Enhanced Femtosecond Nonlinearities and Multiphoton Absorptions in Discrete Bands of Porphyrins
Mohd Shanu, Jitendra Nath Acharyya, Muniappan Sankar, G. Vijaya Prakash
Inorganic Chemistry, 2023
Down-conversion and up-conversion photoluminescence studies of Er3+ doped calcium zinc borosilicate glass for optical fiber amplifiers
A.V.S. Yeswanth, Ib Singh Deo, Anu, A.S. Rao, G. Vijaya Prakash
Journal of Non Crystalline Solids, 2023
Photoluminescence and lifetime studies of C-dot decorated CdS/ZnFe2O4 composite designed for photoelectrochemical applications
Archita Kar, Preeti Dagar, Sandeep Kumar, Ib Singh Deo, G. Vijaya Prakash, Ashok Kumar Ganguli
Journal of Photochemistry and Photobiology A Chemistry, 2023
Studies on Femtosecond Laser Textured Broadband Anti-reflective Hierarchical a-SiNx:H Thin Films for Photovoltaic Applications
Pariksha Malik, Jitendra Nath Acharyya, Mohd Shanu, Albin Kuriakose, Santanu Ghosh, Pankaj Srivastava, G. Vijaya Prakash
ACS Applied Energy Materials, 2023
NaBiF4:Yb3+,Tm3+ submicron particles as luminescent probes for in vitro imaging of cells
Manisha Bungla, Shruti Chowdhari, Mohd Shanu, Pragya Pragya, Vivekanandan Perumal, G. Vijaya Prakash, Ashok K. Ganguli
Physical Chemistry Chemical Physics, 2023
Luminescence turn-off and turn-on interaction mechanism of optical probe with hydrogen peroxide
Swati Bishnoi, Jitendra Nath Acharyya, G. Vijaya Prakash, Sudip K. Pattanayek
Materials Chemistry and Physics, 2023
Saturation and reverse saturation of nonlinear absorption in laser ablated gold nanoparticles
Mani Priyadarshini, G. Vijaya Prakash
Materials Today Proceedings, 2023
Linear and nonlinear optical excitons in primary cyclic ammonium based inorganic–organic hybrid semiconductor series
Kshetra Mohan Dehury, G. Vijaya Prakash
Materials Today Proceedings, 2023
Ultrafast Dynamics and Strong Two-Photon Absorption Properties of Nonplanar β-Functionalized "push-Pull" Copper Corroles with a Mixed Substituent Pattern
Inderpal Yadav, Mohd Shanu, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Inorganic Chemistry, 2022
Strong third-and higher-order nonlinear optical studies on femtosecond laser ablated Germanium metalloid nanoparticle colloid in the wide spectral domain (450–1500 nm)
Mani Priyadarshini, Jitendra Nath Acharyya, Ib Singh Deo, G. Vijaya Prakash
Optics and Laser Technology, 2022
Tethering inorganic luminous upconverting nanoparticles with macromolecular chppendixains using silica functionalized with RAFT agent
Tina Joshi, Mohini Gupta, Supriya Mehta, Neetu Singh, G. Vijaya Prakash, Leena Nebhani
Materials Today Communications, 2022
Highly efficient hexagonal-phase Nd3+ doped KLaF4 nanoparticles colloidal suspension for liquid lasers
Mohini Gupta, Ib Singh Deo, Rajamani Nagarajan, G. Vijaya Prakash
Optical Materials, 2022
Broad white light supercontinuum generation in Barium Zinc Borate glasses
M.M. Neethish, Jitendra Nath Acharyya, P Prem Kiran, G. Vijaya Prakash, Alok Sharan, V.V. Ravi Kanth Kumar
Journal of Luminescence, 2022
Ultrafast pulse propagation and spectral broadening in metal-dielectric 1D photonic crystal
Jitendra Nath Acharyya, Shakti Singh, Mohd Shanu, G. Vijaya Prakash, Akhilesh Kumar Mishra
Optical Materials, 2022
Unsymmetrically β-Functionalized π-Extended Porphyrins: Synthesis, Spectral, Electrochemical Redox Properties, and Their Utilization as Efficient Two-Photon Absorbers
Amir Sohel Bulbul, Nivedita Chaudhri, Mohd Shanu, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Inorganic Chemistry, 2022
Effect of Photonic Cavity Interactions on Femtosecond Multiphoton Optical Nonlinear Absorptions from Bi2O3-Based One-Dimensional Photonic Crystal
Jitendra Nath Acharyya, Narayana Rao Desai, R. B. Gangineni, G. Vijaya Prakash
ACS Photonics, 2022
Photonic cavity mode tuning in porous silicon-based microcavities by He+and H+ion irradiation
Chandra Prakash Verma, Asokan Kandasami, D. Kanjilal, Gaddam Vijaya Prakash
Journal of Applied Physics, 2022
Synthesis and the spectral, electrochemical, and nonlinear optical properties of β-dicyanovinyl-appended ‘push-pull’ porphyrins
Renu K. Rohal, Mohd Shanu, Jitendra Nath Acharyya, G. Vijaya Prakash, Muniappan Sankar
Dalton Transactions, 2022
Optical and thermal studies of Nd3+ doped inorganic liquid medium for scalable laser source
A.K. Varshney, Mainuddin, Sanjeev Kumar, Ashwani Kumar, Gaurav Singhal, Mohini Gupta, G. Vijaya Prakash
Optics and Laser Technology, 2022
Femtosecond optical nonlinearities and ultrafast absorption dynamics of colloidal 2D organometal halide ((C12H25–NH3)2PbI4) nanoparticles and thin films
Kshetra Mohan Dehury, Jitendra Nath Acharyya, Mohammad Adnan, G. Vijaya Prakash
Optical Materials, 2022
β-Tetracyanobutadiene-Appended Porphyrins: Facile Synthesis, Spectral and Electrochemical Redox Properties, and Their Utilization as Excellent Optical Limiters
Renu K. Rohal, Jitendra Nath Acharyya, Mohd Shanu, G. Vijaya Prakash, Muniappan Sankar
Inorganic Chemistry, 2022
Photoluminescence down-shifting studies of thermally stable Eu3+ ions doped borosilicate glasses for visible red photonic device applications
Rajat Bajaj, A.S. Rao, G. Vijaya Prakash
Journal of Non Crystalline Solids, 2022
Tuning the optical properties of porous silicon-based microcavities by energetic oxygen ion beams for optoelectronic applications
Chandra Prakash Verma, K. Asokan, D. Kanjilal, G. Vijaya Prakash
Materials Letters, 2022
Femtosecond optical nonlinearities and Ultrafast dynamics in Metal-dielectric photonic structure
Jitendra Nath Acharyya, G. Vijaya Prakash, D Narayana Rao, Akhilesh Kumar Mishra
2022 Workshop on Recent Advances in Photonics Wrap 2022, 2022
Linear and nonlinear photoluminescence from thermally stable KYF4:Eu3+ cubic nanocrystals
Rajat Bajaj, A.S. Rao, G. Vijaya Prakash
Journal of Alloys and Compounds, 2021
Nonlinear optical dispersion and higher-order effects in bulk and wavelength-ordered photonic materials
Jitendra Nath Acharyya, G. Vijaya Prakash
Optik, 2021
Effect of Zinc Fluoride addition on structure of barium Borate glasses for nonlinear optical applications
M.M. Neethish, Jitendra Nath Acharyya, G. Vijaya Prakash, V.V. Ravi Kanth Kumar
Optical Materials, 2021
Ultrafast Nonlinear Pulse Propagation Dynamics in Metal–Dielectric Periodic Photonic Architectures
Jitendra Nath Acharyya, Akhilesh Kumar Mishra, Desai Narayana Rao, Ajit Kumar, Gaddam Vijaya Prakash
Advanced Materials Interfaces, 2021
Thermoelectric properties of Lenaite: A first principles study
G. Prakash, S. Paulraj, A.M. Adam, E.M.M. Ibrahim, Pandiyarasan Veluswamy, V. Kathirvel
Materials Letters, 2021
Linear and nonlinear excitation induced ultrafast absorption dynamics in laser ablated and chemically synthesized gold nanoparticle colloids
Mani Priyadarshini, Mohammad Adnan, G. Vijaya Prakash
Optical Materials, 2021
Optical nonlinearities in chemically synthesized and femtosecond laser fabricated gold nanoparticle colloidal solutions
Mani Priyadarshini, Jitendra Nath Acharyya, Sumeet Mahajan, G. Vijaya Prakash
Optics and Laser Technology, 2021
Study of Surface and Bulk Recombination Kinetics of Two-Dimensional Inorganic-Organic Hybrid Semiconductors under Linear and Nonlinear Femtosecond Transient Absorption Analysis
Mohammad Adnan, G. Vijaya Prakash
Journal of Physical Chemistry C, 2021
Thermo-physical modeling and experimental validation of core-shell nanoparticle fabrication of nickel-titanium (nitinol) alloy
Vinod Parmar, Sonu Singh, Sunil Kumar, G. Vijaya Prakash, Dinesh Kalyanasundaram
Optics and Laser Technology, 2021
Strong two-photon absorption and ultrafast dynamics of: Meso -functionalized "push-pull" trans -A2BC porphyrins
Sandeep Kumar, Jitendra Nath Acharyya, Dipanjan Banerjee, Venugopal Rao Soma, G. Vijaya Prakash, Muniappan Sankar
Dalton Transactions, 2021
Photonic Cavity-Mediated Tunable Ultrafast Absorption Dynamics in BaTiO3-Based One-Dimensional Photonic Crystal
Jitendra Nath Acharyya, Narayana Rao Desai, R. B. Gangineni, G. Vijaya Prakash
ACS Applied Electronic Materials, 2021
KLa(0.95−x)GdxF4:Eu3+hexagonal phase nanoparticles as luminescent probes forin vitroHuh-7 cancer cell imaging
Mohini Gupta, Rajamani Nagarajan, Chitteti Ramamurthy, Perumal Vivekanandan, G. Vijaya Prakash
Dalton Transactions, 2021
Structure-Dependent (Non)Linear Optical Excitons in Primary Cyclic Ammonium (C nH2 n-1NH2; N = 3-8)-Based Inorganic-Organic Hybrid Semiconductor Series
Kshetra Mohan Dehury, Pawan K. Kanaujia, Mohammad Adnan, Manish Kumar, Saswata Bhattacharya, G. Vijaya Prakash
Journal of Physical Chemistry C, 2021
Tunable characteristics of porous silicon optical microcavities by energetic N ion beam interactions
Chandra Prakash Verma, Mohammad Adnan, Pankaj Srivastava, Asokan Kandasami, Dinakar Kanjilal, G Vijaya Prakash
Journal of Physics D Applied Physics, 2021
Study of optical nonlinearities in laser ablation produced gold nanoparticles through the Z-scan technique
Priyadarshini Mani, Vijaya Prakash Gaddam
Proceedings of SPIE the International Society for Optical Engineering, 2021
Ultrafast Nonlinear Absorption and Pulse Propagation Dynamics in Metal-Dielectric Photonic Structure
Optics Infobase Conference Papers, 2021
Cavity resonance tunability of porous silicon microcavities by Ar+ ion irradiation
Chandra Prakash Verma, K. Asokan, Pawan K. Kanaujia, Mohammad Adnan, D. Kanjilal, G. Vijaya Prakash
Applied Surface Science, 2021
Energy Upconversion in Rare-Earth-Doped Tin-Based Double Halo Perovskites, A2SnCl6 (A = K, Rb, and Cs)
Rajamani Nagarajan, Shahzad Ahmad, Manish Kumar, Mohini Gupta, G. Vijaya Prakash
European Journal of Inorganic Chemistry, 2020
Linear and nonlinear optical probing of various excitons in 2D inorganic-organic hybrid structures
Mohammad Adnan, Jeremy J. Baumberg, G Vijaya Prakash
Scientific Reports, 2020
Alternative fabrication methodologies for two-dimensional self-assembled Inorganic-Organic hybrid semiconductors
Pawan K. Kanaujia, Kshetra Mohan Dehury, Mohammad Adnan, G. Vijaya Prakash
Optical Materials, 2020
Laser-induced inter-ion migration and the effect of different long alkylammonium halide functionalization on CH3NH3Pb(BrxI1−x)3 colloidal nanoparticles
Mohammad Adnan, Pawan K. Kanaujia, G. Vijaya Prakash
Applied Surface Science, 2020
Strong structural phase sensitive rare-earth photoluminescence color flips in KLaF4:RE3+(RE3+= Eu3+, Er3+/Yb3+) nanocrystals
Rajat Bajaj, Mohini Gupta, R. Nagarajan, A. S. Rao, G. Vijaya Prakash
Dalton Transactions, 2020
Facile growth and re-crystallization of polymer-based inorganic-organic 2D hybrid composites and their applications
Pawan K. Kanaujia, Mohammad Adnan, Kshetra Mohan Dehury, G. Vijaya Prakash
Journal of Alloys and Compounds, 2020
Real-time dynamic evolution monitoring of laser-induced exciton phase flips in 2D hybrid semiconductor (C12H25NH3)2PbI4
Mohammad Adnan, Kshetra Mohan Dehury, Pawan K. Kanaujia, G. Vijaya Prakash
Journal of Applied Physics, 2020
Giant Optical Nonlinearities of Photonic Minibands in Metal–Dielectric Multilayers
Jitendra Nath Acharyya, D. Narayana Rao, Mohammad Adnan, C. Raghavendar, R. B. Gangineni, G. Vijaya Prakash
Advanced Materials Interfaces, 2020
A study on up-conversion and energy transfer kinetics of KGdF4:Yb3+/Er3+ nanophosphors
Aman Prasad, A.S. Rao, G. Vijaya Prakash
Journal of Molecular Structure, 2020
Up-conversion luminescence and EPR properties of KGdF4:Yb3+/Tm3+ nanophosphors
Aman Prasad, A.S. Rao, G.Vijaya Prakash
Optik, 2020
Cavity enhancement in nonlinear absorption and photoluminescence of BaTiO3
N.K. Shihab, Jitendra Nath Acharyya, U.P. Mohammed Rasi, R.B. Gangineni, G. Vijaya Prakash, D. Narayana Rao
Optik, 2020
Nonlinear optical absorption switching behavior of BaTiO3 in asymmetric microcavity
N.K. Shihab, Jitendra Nath Acharyya, U.P. Mohammed Rasi, R.B. Gangineni, P. Anantha Lakshmi, G. Vijaya Prakash, D. Narayana Rao
Optical Materials, 2020
Structural and ion transport properties of sodium ion conducting Na2MTeO6 (M= MgNi and MgZn) solid electrolytes
M. Dubey, A. Kumar, S. Murugavel, G. Vijaya Prakash, D. Amilan Jose, C.R. Mariappan
Ceramics International, 2020
Synthesis, Structural, Linear, and Nonlinear Optical Studies of Inorganic-Organic Hybrid Semiconductors (R-C6H4CHCH3NH3)2PbI4, (R = CH3, Cl)
Mohammad Adnan, Kotla Nageswara Rao, Jitendra Nath Acharyya, Dinesh Kumar, Kshetra Mohan Dehury, G. Vijaya Prakash
ACS Omega, 2019
Investigation, modelling and validation of material separation mechanism during fiber laser machining of medical grade titanium alloy Ti6Al4V and stainless steel SS316L
Vinod Parmar, Avinash Kumar, G. Vijaya Prakash, Subhra Datta, Dinesh Kalyanasundaram
Mechanics of Materials, 2019
Structural phase transitions and thermal stability in Cu-based 2D inorganic-organic hybrid perovskite systems
Madhu Bochalya, Pawan K. Kanaujia, G. Vijaya Prakash, Sunil Kumar
Aip Conference Proceedings, 2019
Synthesis and electrochemical properties of rGO/polypyrrole/ferrites nanocomposites obtained via a hydrothermal route for hybrid aqueous supercapacitors
C.R. Mariappan, V. Gajraj, S. Gade, A. Kumar, S. Dsoke, S. Indris, H. Ehrenberg, G. Vijaya Prakash, R. Jose
Journal of Electroanalytical Chemistry, 2019
The stress behaviour of powered vehicle body
Shubham Singh, M Zunaid, Ahmad Naushad, Ansari, T Han, et al.
International Journal of Recent Technology and Engineering, 2019
Magnetism and phase segregation in two-dimensional inorganic-organic (C 12 H 25 NH 3 ) 2 Cu 1-y Mn y Cl 4 hybrids
Madhu Bochalya, G. Vijaya Prakash, Sunil Kumar
Journal of Solid State Chemistry, 2019
Structural and optical diversity in copper halide-based ferromagnetic inorganic-organic layered hybrids
Madhu Bochalya, Pawan K. Kanaujia, G. Vijaya Prakash, Sunil Kumar
Journal of Solid State Chemistry, 2019
Optical property evaluation of thoria doped with heavier rare-earth oxides LnO1.5 (Ln = Er3+, Ho3+, Tm3+, and Yb3+)
Manish Kumar, Meenakshi Pokhriyal, Mohini Gupta, Gaddam Vijaya Prakash, Sitharaman Uma, Rajamani Nagarajan
Journal of the American Ceramic Society, 2019
Isostructural series of [{Al(H2O)6}{Ln(pda)3}].10H2O: Synthesis, structure and photoluminescence
Dinesh Kumar, Shailabh Tewari, Mohammad Adnan, Shahab Ahmad, G. Vijaya Prakash, Arunachalam Ramanan
Inorganica Chimica Acta, 2019
Structural, absorption and photoluminescence studies of Sm3+ ions doped barium lead alumino fluoro borate glasses for optoelectronic device applications
P. Rekha Rani, M. Venkateswarlu, Sk. Mahamuda, K. Swapna, Nisha Deopa, A.S. Rao, G. Vijaya Prakash
Materials Research Bulletin, 2019
Color-Tunable Upconversion in Er3+/Yb3+-Codoped KLaF4 Nanophosphors by Incorporation of Tm3+ Ions for Biological Applications
Mohini Gupta, Mohammad Adnan, Rajamani Nagarajan, G. Vijaya Prakash
ACS Omega, 2019
Photoluminescence properties of two closely related isostructural series based on Anderson-Evans cluster coordinated with lanthanides [Ln(H2O)7(X(OH)6Mo6O18)]·yH2O, X = Al, Cr
Shailabh Tewari, Mohammad Adnan, Balendra, Vineet Kumar, Gaurav Jangra, Gaddam Vijaya Prakash, Arunachalam Ramanan
Frontiers in Chemistry, 2019
Double Perovskite K3InF6 as an Upconversion Phosphor and Its Structural Transformation Through Rubidium Substitution
Sanjay Kumar Saroj, Pooja Rawat, Mohini Gupta, G. Vijaya Prakash, Rajamani Nagarajan
European Journal of Inorganic Chemistry, 2018
Morphological and luminescence studies on KGdF4:Yb3+/Tb3+ up-conversion nanophosphors
Aman Prasad, A.S. Rao, Mohini Gupta, G. Vijaya Prakash
Materials Chemistry and Physics, 2018
Investigation on structural and luminescence features of Dy3+ ions doped alkaline-earth boro tellurite glasses for optoelectronic devices
K. Siva Rama Krishna Reddy, K. Swapna, Sk. Mahamuda, M. Venkateswarlu, A.S. Rao, G. Vijaya Prakash
Optical Materials, 2018
Pr3+ ions doped single alkali and mixed alkali fluoro tungsten tellurite glasses for visible red luminescent devices
Ch.B Annapurna Devi, Sk. Mahamuda, K. Swapna, M. Venkateswarlu, A. Srinivasa Rao, G. Vijaya Prakash
Journal of Non Crystalline Solids, 2018
Gold nanoflowers as efficient hosts for SERS based sensing and bio-imaging
Arun Singh Patel, Subhavna Juneja, Pawan K. Kanaujia, Vikas Maurya, G. Vijaya Prakash, Anirban Chakraborti, Jaydeep Bhattacharya
Nano Structures and Nano Objects, 2018
Ionic conduction and dielectric properties of yttrium doped LiZr2(PO4)3 obtained by a Pechini-type polymerizable complex route
C.R. Mariappan, P. Kumar, A. Kumar, S. Indris, H. Ehrenberg, G. Vijaya Prakash, R. Jose
Ceramics International, 2018
Angle dependent localized surface plasmon resonance from near surface implanted silver nanoparticles in SiO2 thin film
R. K. Bommali, D. P. Mahapatra, H. Gupta, Puspendu Guha, D. Topwal, G. Vijaya Prakash, S. Ghosh, P. Srivastava
Journal of Applied Physics, 2018
Oxidation facilitated antimicrobial ability of laser micro-textured titanium alloy against gram-positive Staphylococcus aureus for biomedical applications
Vinod Parmar, Avinash Kumar, Manimuthu Mani Sankar, Subhra Datta, G. Vijaya Prakash, Sujata Mohanty, Dinesh Kalyanasundaram
Journal of Laser Applications, 2018
Magnetic phase transition in layered inorganic-organic hybrid (C12H25NH3)2CuCl4
Madhu Bochalya, Sunil Kumar, Pawan K. Kanaujia, G. Vijaya Prakash
Aip Conference Proceedings, 2018
Structural, optical absorption and photoluminescence spectral studies of Sm3+ ions in Alkaline-Earth Boro Tellurite glasses
K. Siva Rama Krishna Reddy, K. Swapna, Sk. Mahamuda, M. Venkateswarlu, M.V.V.K. Srinivas Prasad, A.S. Rao, G. Vijaya Prakash
Optical Materials, 2018
Spectroscopic study of Pr3+ ions doped Zinc Lead Tungsten Tellurite glasses for visible photonic device applications
Ritu Sharma, A.S. Rao, Nisha Deopa, M. Venkateswarlu, M. Jayasimhadri, D. Haranath, G. Vijaya Prakash
Optical Materials, 2018
Photoluminescence investigations on Sm3+ ions doped borate glasses for tricolor w-LEDs and lasers
Nisha Deopa, A.S. Rao, Ankur Choudhary, Shubham Saini, Abhishek Navhal, M. Jayasimhadri, D. Haranath, G. Vijaya Prakash
Materials Research Bulletin, 2018
Spectroscopic investigations of Nd3+ doped Lithium Lead Alumino Borate glasses for 1.06 μm laser applications
Nisha Deopa, A.S. Rao, Mohini Gupta, G. Vijaya Prakash
Optical Materials, 2018
Compositional dependence of red luminescence from Eu3+ ions doped single and mixed alkali fluoro tungsten tellurite glasses
C.h.B Annapurna Devi, Sk. Mahamuda, K. Swapna, M. Venkateswarlu, A. Srinivasa Rao, G. Vijaya Prakash
Optical Materials, 2017
Ultrafast laser based hybrid methodology of silicon microstructure fabrication for optoelectronic applications
Pawan K. Kanaujia, Angika Bulbul, Vinod Parmar, G. Vijaya Prakash
Applied Surface Science, 2017
Silicon-Based Inorganic–Organic Hybrid Nanocomposites for Optoelectronic Applications
Pawan K. Kanaujia, Ajay Singh, G. Vijaya Prakash
Energy Technology, 2017
Efficient Surface Enhanced Raman Scattering substrates from femtosecond laser based fabrication
Vinod Parmar, Pawan K. Kanaujia, Ravi Kumar Bommali, G. Vijaya Prakash
Optical Materials, 2017
Growth of few- and multilayer graphene on different substrates using pulsed nanosecond Q-switched Nd:YAG laser
Pramod Kumar, Pawan Kumar Kanaujia, G. Vijaya Prakash, Avijit Dewasi, Indranil Lahiri, Anirban Mitra
Journal of Materials Science, 2017
Pseudocapacitance of Mesoporous Spinel-Type MCo2O4 (M = Co, Zn, and Ni) Rods Fabricated by a Facile Solvothermal Route
Vijay Kumar, Chinnasamy Ramaraj Mariappan, Raheleh Azmi, Dominique Moock, Sylvio Indris, Michael Bruns, Helmut Ehrenberg, Gaddam Vijaya Prakash
ACS Omega, 2017
Calcium and Strontium Coordination Polymers Based on Rigid and Flexible Aromatic Dicarboxylates: Synthesis, Structure, Photoluminescence and Dielectric Properties
Balendra, Azeem Banday, Sevi Murugavel, Pawan K. Kanaujia, G. Vijaya Prakash, Arunachalam Ramanan
Chemistryselect, 2017
Fabrication of anti-reflective microstructured silicon surfaces using nanosecond fiber laser texturing
Vinod Parmar, G. Vijaya Prakash, Dinesh Kalyanasundaram
Optics Infobase Conference Papers, 2017
Wet-chemical synthesis, structural characterization and optical properties of rare-earth doped halo perovskite K3GaF6
Pooja Rawat, Sanjay Kumar Saroj, Mohini Gupta, G. Vijaya Prakash, Rajamani Nagarajan
Journal of Fluorine Chemistry, 2017
Investigating resonance energy transfer from protein molecules to van der Waals nanosheets
Arun Singh Patel, Praveen Mishra, Pawan K. Kanaujia, Syed Shariq Husain, G. Vijaya Prakash, Anirban Chakraborti
Rsc Advances, 2017
Spectroscopic studies of Pr3+ doped lithium lead alumino borate glasses for visible reddish orange luminescent device applications
Nisha Deopa, A.S. Rao, Sk. Mahamuda, Mohini Gupta, M. Jayasimhadri, D. Haranath, G. Vijaya Prakash
Journal of Alloys and Compounds, 2017
Resonance Raman scattering and ab initio calculation of electron energy loss spectra of MoS2 nanosheets
Anirban Chakraborti, Arun Singh Patel, Pawan K. Kanaujia, Palash Nath, G. Vijaya Prakash, Dirtha Sanyal
Physics Letters Section A General Atomic and Solid State Physics, 2016
Arrangement of chromonic liquid crystals near hydrophobic and hydrophillic surfaces
Anil Kumar, Sudip K. Pattanayek, Archana Kumari, G Vijaya Prakash
Journal of Molecular Liquids, 2016
Dy3+ ions doped single and mixed alkali fluoro tungsten tellurite glasses for LASER and white LED applications
Ch. B. Annapurna Devi, Sk. Mahamuda, M. Venkateswarlu, K. Swapna, A. Srinivasa Rao, G. Vijaya Prakash
Optical Materials, 2016
Study of spinel-type ZnNixCo2−xO4 nano-particles, synthesised by thermal decomposition of ternary metal nitrate solutions
Jyotish Kumar, C.R. Mariappan, Vijay Kumar, S. Murugavel, G.Vijaya Prakash
Materials Research Bulletin, 2016
Luminescence spectral studies of Tm3+ ions doped Lead Tungsten Tellurite glasses for visible Red and NIR applications
M. Venkateswarlu, Sk. Mahamuda, K. Swapna, A. Srinivasa Rao, A. Mohan Babu, Suman Shakya, D. Haranath, G. Vijaya Prakash
Journal of Luminescence, 2016
Laser-induced microstructuring of two-dimensional layered inorganic-organic perovskites
Pawan K. Kanaujia, G. Vijaya Prakash
Physical Chemistry Chemical Physics, 2016
Femtosecond laser based fabrication of nanostructured silicon
Vinod Parmar, Pawan K. Kanaujia, Ravi Kumar Bommali, G.Vijaya Prakash
Optics Infobase Conference Papers, 2016
Strong Photocurrent from Two-Dimensional Excitons in Solution-Processed Stacked Perovskite Semiconductor Sheets
Shahab Ahmad, Pawan K. Kanaujia, Harry J. Beeson, Antonio Abate, Felix Deschler, Dan Credgington, Ullrich Steiner, G. Vijaya Prakash, Jeremy J. Baumberg
ACS Applied Materials and Interfaces, 2015
Image excitons and plasmon-exciton strong coupling in two-dimensional perovskite semiconductors
Wendy Niu, Lindsey A. Ibbotson, David Leipold, Erich Runge, G. Vijaya Prakash, Jeremy J. Baumberg
Physical Review B Condensed Matter and Materials Physics, 2015
Swift heavy ion irradiation induced microstructural modification and evolution of photoluminescence from Si rich a-SiNx:H
R K Bommali, S Ghosh, G Vijaya Prakash, D Kanjilal, P Mondal, A K Srivastava, P Srivastava
Materials Research Express, 2015
Formation of PbO hexagonal nanosheets and their conversion into luminescent inorganic-organic perovskite nanosheets: Growth and mechanism
Suman Shakya, G. Vijaya Prakash
Rsc Advances, 2015
Two-dimensional inorganic-organic perovskite hexagonal nanosheets: Growth and mechanism
Suman Shakya, G. Vijaya Prakash
Proceedings of SPIE the International Society for Optical Engineering, 2015
Functional properties of ZnCo2O4 nano-particles obtained by thermal decomposition of a solution of binary metal nitrates
C. R. Mariappan, R. Kumar, G. Vijaya Prakash
Rsc Advances, 2015
Visible, Up-conversion and NIR (∼1.5 μm) luminescence studies of Er3+ doped Zinc Alumino Bismuth Borate glasses
K. Swapna, Sk. Mahamuda, M. Venkateswarlu, A. Srinivasa Rao, M. Jayasimhadri, Suman Shakya, G. Vijaya Prakash
Journal of Luminescence, 2015
Spectroscopic studies of Nd3+ doped lead tungsten tellurite glasses for the NIR emission at 1062 nm
M. Venkateswarlu, Sk. Mahamuda, K. Swapna, M.V.V.K.S. Prasad, A. Srinivasa Rao, A. Mohan Babu, Suman Shakya, G. Vijaya Prakash
Optical Materials, 2015
Holmium doped Lead Tungsten Tellurite glasses for green luminescent applications
M. Venkateswarlu, Sk. Mahamuda, K. Swapna, M.V.V.K.S. Prasad, A. Srinivasa Rao, Suman Shakya, A. Mohan Babu, G. Vijaya Prakash
Journal of Luminescence, 2015
Experimental investigation of redistributed photon DOS in hybrid metal-dielectric photonic crystals
Sriram Guddala, D. Narayana Rao, G. Vijaya Prakash
Wrap 2013 Workshop on Recent Advances in Photonics, 2014
Novel fluorite structured superparamagnetic RbGdF4 nanocrystals as versatile upconversion host
Shahzad Ahmad, Rajamani Nagarajan, Packiya Raj, G. Vijaya Prakash
Inorganic Chemistry, 2014
Narrow band photocurrent response from partially phase separated a-SiNx:H thin films
R. K. Bommali, Shahab Ahmad, Nandlal Sharma, P. Srivastava, G. Vijaya Prakash
Journal of Applied Physics, 2014
Template assisted growth of microporous structures of CdSexTe1 - X and thin film photocurrent studies
Suman Shakya, G Vijaya Prakash
Materials Research Express, 2014
Photoluminescent chromium molybdate cluster coordinated with rare earth cations: Synthesis, structure, optical and magnetic properties
Dinesh Kumar, Shahab Ahmad, G. Vijaya Prakash, Kandalam V. Ramanujachary, Arunachalam Ramanan
Crystengcomm, 2014
In situ intercalation dynamics in inorganic-organic layered perovskite thin films
Shahab Ahmad, Pawan K. Kanaujia, Wendy Niu, Jeremy J. Baumberg, G. Vijaya Prakash
ACS Applied Materials and Interfaces, 2014
Optical studies of Sm3+ ions doped Zinc Alumino Bismuth Borate glasses
K. Swapna, Sk. Mahamuda, A. Srinivasa Rao, S. Shakya, T. Sasikala, D. Haranath, G. Vijaya Prakash
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 2014
Exfoliation of self-assembled 2D organic-inorganic perovskite semiconductors
Wendy Niu, Anna Eiden, G. Vijaya Prakash, Jeremy J. Baumberg
Applied Physics Letters, 2014
Synthesis, structure and optical studies of inorganic-organic hybrid semiconductor, (H3NC6H4CH2NH 3) PbI4
K. Nageswara Rao, Amit Singh, G. Vijaya Prakash
Materials Research Bulletin, 2014
Tunable visible upconversion emission in Er3+/Yb 3+-codoped KCaBO3 phosphors by introducing Ho3+ ions
Subrata Das, A. Amarnath Reddy, S. Surendra Babu, G. Vijaya Prakash
Materials Letters, 2014
Hydrogen plasma induced modification of photoluminescence from a -SiN x:H thin films
R. K. Bommali, S. Ghosh, G. Vijaya Prakash, K. Gao, S. Zhou, S. A. Khan, P. Srivastava
Journal of Applied Physics, 2014
Fabrication and room-temperature exciton photoluminescence stability studies of inorganic-organic hybrid (C12H25NH 3)2SnI4 thin films
V.K. Dwivedi, G. Vijaya Prakash
Solid State Sciences, 2014
Two-step fabrication of R-PbI4(1-y)Br4y type light emitting inorganic-organic hybrid photonic structures
Shahab Ahmad, G. Vijaya Prakash
Optical Materials Express, 2014
Strong room-temperature ultraviolet to red excitons from inorganic organic-layered perovskites, (R-NH3)2MX4 (M=Pb2+, Sn2+, Hg2+; X=I-, Br -)
Shahab Ahmad, G. Vijaya Prakash
Journal of Nanophotonics, 2014
Effect of volatile solvent infiltration on optical and electrical characteristics of porous photonic structures
Pawan K. Kanaujia, M. C. Bhatnagar, G. Vijaya Prakash
Rsc Advances, 2014
Direct deposition strategy for highly ordered inorganic organic perovskite thin films and their optoelectronic applications
Shahab Ahmad, Chintam Hanmandlu, Pawan K. Kanaujia, G. Vijaya Prakash
Optical Materials Express, 2014
Lasing potentialities and white light generation capabilities of Dy 3+ doped oxy-fluoroborate glasses
Sk. Mahamuda, K. Swapna, P. Packiyaraj, A. Srinivasa Rao, G. Vijaya Prakash
Journal of Luminescence, 2014
Tb3+ doped Zinc Alumino Bismuth Borate glasses for green emitting luminescent devices
K. Swapna, Sk. Mahamuda, A. Srinivasa Rao, M. Jayasimhadri, Suman Shakya, G. Vijaya Prakash
Journal of Luminescence, 2014
Spectral characterisation of Sm3+ ions doped Oxy-fluoroborate glasses for visible orange luminescent applications
Sk. Mahamuda, K. Swapna, M. Venkateswarlu, A. Srinivasa Rao, Suman Shakya, G. Vijaya Prakash
Journal of Luminescence, 2014
Luminescence characterization of Eu3+ doped Zinc Alumino Bismuth Borate glasses for visible red emission applications
K. Swapna, Sk. Mahamuda, A. Srinivasa Rao, T. Sasikala, P. Packiyaraj, L. Rama Moorthy, G. Vijaya Prakash
Journal of Luminescence, 2014
Structural tunability and switchable exciton emission in inorganic-organic hybrids with mixed halides
Shahab Ahmad, Jeremy J. Baumberg, G. Vijaya Prakash
Journal of Applied Physics, 2013
Raman scattering enhancement in photon-plasmon resonance mediated metal-dielectric microcavity
Sriram Guddala, Vindesh K. Dwivedi, G. Vijaya Prakash, D. Narayana Rao
Journal of Applied Physics, 2013
Photoconductivity and surface chemical analysis of ZnO thin films deposited by solution-processing techniques for nano and microstructure fabrication
V. K. Dwivedi, P. Srivastava, G. Vijaya Prakash
Journal of Semiconductors, 2013
Synthesis, structural, thermal and optical studies of inorganic-organic hybrid semiconductors, R-PbI4
K. Pradeesh, K. Nageswara Rao, G. Vijaya Prakash
Journal of Applied Physics, 2013
Direct deposition of inorganic-organic hybrid semiconductors and their template-assisted microstructures
V.K. Dwivedi, J.J. Baumberg, G. Vijaya Prakash
Materials Chemistry and Physics, 2013
Optical properties of Tb3+ doped KLaF4 in cubic and hexagonal symmetries
Shahzad Ahmad, Subrata Das, R. Nagarajan, G. Vijaya Prakash
Optical Materials, 2013
Visible red, NIR and Mid-IR emission studies of Ho3+ doped Zinc Alumino Bismuth Borate glasses
Sk. Mahamuda, K. Swapna, P. Packiyaraj, A. Srinivasa Rao, G. Vijaya Prakash
Optical Materials, 2013
Growth and tailoring of physical properties of Si quantum dots in a-SiNx:H matrix
Ravi Kumar Bommali, Sarab Preet Singh, G. Vijaya Prakash, Santanu Ghosh, P. Srivastava
Energy Procedia, 2013
Excitation dependent photoluminescence study of Si-rich a-SiNx:H thin films
Ravi Kumar Bommali, Sarab Preet Singh, Sanjay Rai, P. Mishra, B. R. Sekhar, G. Vijaya Prakash, P. Srivastava
Journal of Applied Physics, 2012
Hexagonally ordered KLaF4 host: Phase-controlled synthesis and luminescence studies
Shahzad Ahmad, G. Vijaya Prakash, R. Nagarajan
Inorganic Chemistry, 2012
Fabrication of excitonic luminescent inorganic-organic hybrid nano and microcrystals
2012 International Conference on Fiber Optics and Photonics Photonics 2012, 2012
Er 3-doped phosphate glasses with improved gain characteristics for broadband optical amplifiers
A. Amarnath Reddy, S. Surendra Babu, G. Vijaya Prakash
Optics Communications, 2012
Fabrication of excitonic luminescent inorganic-organic hybrid nano- and microcrystals
I. Saikumar, Shahab Ahmad, J.J. Baumberg, G. Vijaya Prakash
Scripta Materialia, 2012
Near white light emission from K + ion compensated CaSO 4:Dy 3+,Eu 3+ phosphors
Subrata Das, A. Amarnath Reddy, G. Vijaya Prakash
Ceramics International, 2012
Ion beam induced dissolution and precipitation of in situ formed Si-nanostructures in a-SiN x:H matrix
Sarab Preet Singh, Santanu Ghosh, G. Vijaya Prakash, Saif A. Khan, D. Kanjilal, A.K. Srivastava, Himanshu Srivastava, P. Srivastava
Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, 2012
Electro-optic studies in conventional and pure/ethanol mixed de Vries ferroelectric liquid crystals
G. Singh, G. Vijaya Prakash, A. Choudhary, A.M. Biradar
Liquid Crystals, 2012
Fabrication of excitonic luminescent inorganic-organic hybrid nano and microcrystals
Optics Infobase Conference Papers, 2012
Template assisted growth of CdSexTe1-x photonic structures
Suman Shakya, G. Vijaya Prakash
2012 International Conference on Fiber Optics and Photonics Photonics 2012, 2012
Template assisted growth of CdSexTe1-x photonic structures
Optics Infobase Conference Papers, 2012
Temperature-induced exciton switching in long alkyl chain based inorganic-organic hybrids
K. Pradeesh, J. J. Baumberg, G. Vijaya Prakash
Journal of Applied Physics, 2012
Influence of the annealing temperatures on the photoluminescence of KCaBO3:Eu3+ phosphor
A. Amarnath Reddy, Subrata Das, Shahab Ahmad, S. Surendra Babu, José M. F. Ferreira, G. Vijaya Prakash
Rsc Advances, 2012
Strong-coupling in Inorganic-Organic hybrid embedded single and coupled metallic microcavities
K. Pradeesh, G. Vijaya Prakash
Journal of Nanoscience and Nanotechnology, 2011
Controllable white light emission from Dy3+-Eu3+ co-doped KCaBO3 phosphor
Subrata Das, A. Amarnath Reddy, S. Surendra Babu, G. Vijaya Prakash
Journal of Materials Science, 2011
Optical and structural features of silicon-rich hydrogenated amorphous silicon nitride thin films
Sarab Preet Singh, Claudio J. Otón, P. Srivastava, Santanu Ghosh, G. Vijaya Prakash
Journal of Nanoscience and Nanotechnology, 2011
Evaluation of phototherapy devices used for neonatal hyperbilirubinemia
Sreeram Subramanian, Mari Jeeva Sankar, Ashok K. Deorari, Thirumurthy Velpandian, Pradeesh Kannan, Gaddam Vijaya Prakash, Ramesh Agarwal, Vinod K. Paul
Indian Pediatrics, 2011
Synthesis and optical characterization of strong red light emitting KLaF4:Eu3+ nanophosphors
Subrata Das, A. Amarnath Reddy, Shahzad Ahmad, R. Nagarajan, G. Vijaya Prakash
Chemical Physics Letters, 2011
Optical properties of Dy3+-doped sodium-aluminum-phosphate glasses
A. Amarnath Reddy, M. Chandra Sekhar, K. Pradeesh, S. Surendra Babu, G. Vijaya Prakash
Journal of Materials Science, 2011
Strong green upconversion emission from Er3+-Yb3+ co-doped KCaBO3 phosphor
Subrata Das, A. Amarnath Reddy, G. Vijaya Prakash
Chemical Physics Letters, 2011
Optical properties of highly Er3+-doped sodium-aluminium- phosphate glasses for broadband 1.5 μm emission
A. Amarnath Reddy, S. Surendra Babu, K. Pradeesh, C.J. Otton, G. Vijaya Prakash
Journal of Alloys and Compounds, 2011
Controlled emission from dye saturated single and coupled microcavities
V.K. Dwivedi, K. Pradeesh, G. Vijaya Prakash
Applied Surface Science, 2011
Switcheable strong-coupling microcavities of inorganic-organic perovskite natural quantum wells
Optics Infobase Conference Papers, 2010
Synthesis, structure and optical studies of inorganic-organic hybrid semiconductor, NH3(CH2)12NH3PbI 4
K. Pradeesh, G. Sharachandar Yadav, Monika Singh, G. Vijaya Prakash
Materials Chemistry and Physics, 2010
Phase evolution and photoluminescence in as-deposited amorphous silicon nitride films
Sarab Preet Singh, P. Srivastava, S. Ghosh, S.A. Khan, Claudio J. Oton, G. Vijaya Prakash
Scripta Materialia, 2010
Anisotropic behavior of water in ferroelectric liquid crystals
G. Singh, A. Choudhary, G. Vijaya Prakash, A. M. Biradar
Physical Review E Statistical Nonlinear and Soft Matter Physics, 2010
Strong exciton-photon coupling in layered perovskites embedded low-Q microcavity
K. Pradeesh, G.Vijaya Prakash
Inec 2010 2010 3rd International Nanoelectronics Conference Proceedings, 2010
Optical and structural features of silicon-rich a-SiNx:H thin films
Sarab Preet Singh, C.J. Oton, P. Srivastava, Sanatanu Ghosh, G. Vijaya Prakash
Inec 2010 2010 3rd International Nanoelectronics Conference Proceedings, 2010
Homeotropic alignment of nematic liquid crystals with negative dielectric anisotropy
G. Singh, G. Vijaya Prakash, A. Choudhary, A.M. Biradar
Physica B Condensed Matter, 2010
Switcheable strong-coupling microcavities of inorganic-organic perovskite natural quantum wells
K. Pradeesh, G. Vijaya Prakash, J.J. Baumberg
Lasers and Electro Optics Quantum Electronics and Laser Science Conference 2010 Laser Science to Photonic Applications CLEO QELS 2010, 2010
Synthesis, crystal structure and optical properties of quasi-one-dimensional lead (II) iodide: C14H18N2Pb2I6
K. Pradeesh, Monika Agarwal, K. Koteswara Rao, G. Vijaya Prakash
Solid State Sciences, 2010
Strong exciton-photon coupling in inorganic-organic multiple quantum wells embedded low-Q microcavity
K. Pradeesh, J. J. Baumberg, G. Vijaya Prakash
Optics Express, 2009
Exciton switching and Peierls transitions in hybrid inorganic-organic self-assembled quantum wells
K. Pradeesh, J. J. Baumberg, G. Vijaya Prakash
Applied Physics Letters, 2009
Structural and optical studies of local disorder sensitivity in natural organic-inorganic self-assembled semiconductors
G Vijaya Prakash, K Pradeesh, R Ratnani, K Saraswat, M E Light, J J Baumberg
Journal of Physics D Applied Physics, 2009
In situ intercalation strategies for device-quality hybrid inorganic-organic self-assembled quantum wells
K. Pradeesh, J. J. Baumberg, G. Vijaya Prakash
Applied Physics Letters, 2009
Phase stabilization by rapid thermal annealing in amorphous hydrogenated silicon nitride film
Sarab Preet Singh, P Srivastava, S Ghosh, Saif Ali Khan, G Vijaya Prakash
Journal of Physics Condensed Matter, 2009
Room temperature excitons in hybrid organic-inorganic multiple quantum wells for strong coupling experiments
K. Pradeesh, J.J. Baumberg, G. Vijaya Prakash
2008 IEEE Photonicsglobal at Singapore Ipgc 2008, 2008
Molecular relaxation in homeotropically aligned ferroelectric liquid crystals
G. Singh, G. Vijaya Prakash, S. Kaur, A. Choudhary, A.M. Biradar
Physica B Condensed Matter, 2008
Fabrication and optoelectronic characterisation of ZnO photonic structures
G. Vijaya Prakash, K. Pradeesh, Ashwani Kumar, Rajesh Kumar, S. Venugopal Rao, M.L. Markham, J.J. Baumberg
Materials Letters, 2008
Optical properties of Er3+ doped alkali chlorophosphate glasses for optical amplifiers
K. Pradeesh, C.J. Oton, V.K. Agotiya, M. Raghavendra, G. Vijaya Prakash
Optical Materials, 2008
Fabrication and characterisation of CdSe photonic structures from self-assembled templates
G.Vijaya Prakash, Rahul Singh, Ashwani Kumar, Rashmish K. Mishra
Materials Letters, 2006
Pyramidal micromirrors for microsystems and atom chips
M. Trupke, F. Ramirez-Martinez, E. A. Curtis, J. P. Ashmore, S. Eriksson, E. A. Hinds, Z. Moktadir, C. Gollasch, M. Kraft, G. Vijaya Prakash, J. J. Baumberg
Applied Physics Letters, 2006
Vitrification of K3M2P3O12 (M = B, Al, Bi) NASICON-type materials and electrical relaxation studies
C.R. Mariappan, G. Govindaraj, S. Vinoth Rathan, G. Vijaya Prakash
Materials Science and Engineering B, 2005
Preparation, characterization, ac conductivity and permittivity studies on vitreous M4AlCdP3O12 (M = Li, Na, K) system
C.R. Mariappan, G. Govindaraj, S. Vinoth Rathan, G. Vijaya Prakash
Materials Science and Engineering B, 2005
Strong exciton-photon coupling in a length tunable optical microcavity with J-aggregate dye heterostructures
C. E. Finlayson, G. Vijaya Prakash, J. J. Baumberg
Applied Physics Letters, 2005
Control of topological defects in microstructured liquid crystal cells
G. Vijaya Prakash, M. Kaczmarek, A. Dyadyusha, J. J. Baumberg, G. D'Alessandro
Optics Express, 2005
Control of topological liquid crystal defects in microstructured cells
G. D'Alessandro, G.V. Prakash, M. Kaczmarek, A. Dyadyusha, J.J. Baumberg
Conference on Lasers and Electro Optics Europe Technical Digest, 2005
Tunable resonant optical microcavities by self-assembled templating
G. Vijaya Prakash, L. Besombes, T. Kelf, Jeremy J. Baumberg, P. N. Bartlett, M. E. Abdelsalam
Optics Letters, 2004
Online handwriting recognition for Tamil
K.H. Aparna, V. Subramanian, M. Kasirajan, G.V. Prakash, V.S. Chakravarthy, S. Madhvanath
Proceedings International Workshop on Frontiers in Handwriting Recognition Iwfhr, 2004
Templated metal nano-resonators for tunable optical microcavities
OSA Trends in Optics and Photonics Series, 2004
Fabrication and optical characterization, of 2-dimensional Si 3N4 waveguides
G. Pucker, M. Crivellari, P. Bellutti, A. Lui, N. Daldosso, S. Cella, M. Girardini, V.G. Prakash, L. Pavesi
Conference on Lasers and Electro Optics Europe Technical Digest, 2003
Spherical micromirrors from templated self-assembly: Polarization rotation on the micron scale
S. Coyle, G. V. Prakash, J. J. Baumberg, M. Abdelsalem, P. N. Bartlett
Applied Physics Letters, 2003
Interferometric method for monitoring electrochemical etching of thin films
Z. Gaburro, C. J. Oton, P. Bettotti, L. Dal Negro, G. Vijaya Prakash, M. Cazzanelli, L. Pavesi
Journal of the Electrochemical Society, 2003
Nanostructured silicon as a photonic material
L. Pavesi, Z. Gaburro, L.Dal Negro, P. Bettotti, G.Vijaya Prakash, M. Cazzanelli, C.J. Oton
Optics and Lasers in Engineering, 2003
Physical and optical properties of NASICON-type phosphate glasses
G Vijaya Prakash, R Jagannathan, D Narayana Rao
Materials Letters, 2002
Silicon nanostructures for photonics
P Bettotti, M Cazzanelli, L Dal Negro, B Danese, Z Gaburro, C J Oton, G Vijaya Prakash, L Pavesi
Journal of Physics Condensed Matter, 2002
Linear and nonlinear optical properties of plasma-enhanced chemical-vapour deposition grown silicon nanocrystals
G. VIJAYA PRAKASH, M. CAZZANELLI, Z. GABURRO, L. PAVESI, F. IACONA, G. FRANZÒ, F. PRIOLO
Journal of Modern Optics, 2002
Nonlinear optical properties of silicon nanocrystals grown by plasma-enhanced chemical vapor deposition
G. Vijaya Prakash, M. Cazzanelli, Z. Gaburro, L. Pavesi, F. Iacona, G. Franzò, F. Priolo
Journal of Applied Physics, 2002
Nonlinear optical properties of plasma enhanced chemical vapour deposition grown silicon nanocrystals
Materials Research Society Symposium Proceedings, 2002
Silicon nanostructures for photonics
L. Pavesi, P. Bettotti, M. Cazzanelli, S. Cella, N. Daldosso, L. Dal Negro, B. Danese, Z. Gaburro, C.J. Oton, L. Pancheri, G.V. Prakash
Proceedings of the International Semiconductor Conference CAS, 2002
Structural and Optical Properties of Silicon Nanocrystals Grown by Plasma-Enhanced Chemical Vapor Deposition
G. Vijaya Prakash, N. Daldosso, E. Degoli, F. Iacona, M. Cazzanelli, Z. Gaburro, G. Pucker, P. Dalba, F. Rocca, E. Ceretta Moreira, G. Franzó, D. Pacifici, F. Priolo, C. Arcangeli, A. B. Filonov, S. Ossicini, L. Pavesi
Journal of Nanoscience and Nanotechnology, 2001
Linear optical properties of niobium-based tellurite glasses
G Vijaya Prakash, D Narayana Rao, A.K Bhatnagar
Solid State Communications, 2001
Spectroscopic properties of coumarin laser dye mixtures
Indian Journal of Pure and Applied Physics, 2000
Absorption spectral studies of rare earth ions (Pr3+, Nd3+, Sm3+, Dy3+, Ho3+ and Er3+) doped in NASICON type phosphate glass, Na4AlZnP3O12
G. Vijaya Prakash
Materials Letters, 2000
Fluorescence properties of Eu3+ doped lead bearing fluoro-chloro phosphate glasses
G Vijaya Prakash, R Jagannathan
Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 1999
Rare earth fluorescence in NASICON type phosphate glass, Na3TiZnP3O12
G Vijaya Prakash, P Nachimuthu, M Vithal, R Jagannathan
Bulletin of Materials Science, 1999
Ultrasonic, dielectric and fluorescence spectral studies of dimerization effects in dilute aqueous solutions of laser dye rhodamine B
Indian Journal of Pure and Applied Physics, 1998

G. Vijaya Prakash

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