Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
66
Scopus Publications
378
Scholar Citations
9
Scholar h-index
9
Scholar i10-index
Scopus Publications
High-Performance Triboelectric Nanogenerator Derived from Surface-Modified Carbon Dot/Poly(vinylidene Fluoride-co-Hexafluoropropylene) Nanocomposite Film Ajay Kumar, Debopriya Bhattacharya, Manisha Kundu, Mojammel Rahaman, Swarnendu Banerjee, Matěj Hývl, Martin Ledinský, Sukhen Das, Navonil Bose, Mousumi Basu Energy Technology, 2025 In the age of miniaturized and self‐powered wearable electronics, flexible nanogenerators play a pivotal role in energy harvesting and mechanical sensing applications. Here, the development of a cost‐effective, flexible, high‐performance triboelectric nanogenerator (TENG) comprising carbon dot (CD) loaded self‐standing poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) films is reported. A two‐fold strategy is introduced to enhance the performance of the TENG, where the surface modification of the film is achieved by employing the novel phase inversion method of film fabrication, and the electroactive phase of the film is optimized through optimum percentage loading of the nanofiller. 0.5 mL CD‐loaded PVDF‐HFP film (PC‐0.5‐PI), having the highest electroactive β‐phase, is used for the TENG fabrication. A sufficiently small amount of biomechanical force on the TENG device can generate up to 442 V of open‐circuit voltage with a power density of 5.4 W m −2 . The outcome of the TENG is confirmed by Kelvin probe force microscopy measurement of the composite film, which describes the theoretical open‐circuit voltage to be 476.5 V. The TENG device is also attached to the insole of a shoe and wirelessly integrated with an Android device for remote detection of various human movements.
Wavelength conversion in the presence of Raman amplification in silicon rib waveguides Somen Adhikary, Atrayee Mishra, Binoy Krishna Ghosh, Dipankar Ghosh, Mousumi Basu Applied Optics, 2025 This study presents the wavelength conversion facilitated by the interplay between a co-propagating triangular signal and a Gaussian pump by analyzing the nonlinear phase shift in highly nonlinear silicon-core rib waveguides, marking the first report of its kind, to our knowledge. The interaction between the pump and the signal enables possible amplification driven by cross-phase modulation and stimulated Raman scattering. To substantiate these findings, four waveguides are designed and optimized. Numerical solutions of the coupled amplitude equations result in a Raman gain of $∼18−22dB$ within a compact size, achieving performance comparable to or exceeding previously reported results. As predicted by the analytical model, spectral intensity doublets emerge, with their wavelength shifts and peak power ratios showing strong dependence on pump power and signal pulse width. Higher pump power causes larger wavelength shifts, while broader signal pulses expedite spectral splitting. The observed red-shift ranges from 65 to 81 nm, while the blue-shift spans 54 to 64 nm. Additionally, TPA and FCA play a crucial role in shaping the spectral doublet, particularly in highly nonlinear silicon waveguides. This work represents the first systematic exploration of wavelength conversion through pump-signal interaction in silicon rib waveguides, incorporating carrier lifetime effects and offering valuable insights into controlling spectral doublet generation for integrated photonic applications.
Highly coherent mid-infrared wideband supercontinuum generation by a silica cladded silicon nitride core buried waveguide Somen Adhikary, Dipankar Ghosh, Mousumi Basu Journal of Optics United Kingdom, 2024 Optical waveguides with semiconductor cores are drawing considerable research interest in the domain of supercontinuum (SC) generation in recent times. In this work, we design a square-core silicon nitride buried waveguide with a silica-clad, aiming for a wideband spectrum generation in the mid-IR region when operated at the standard telecommunication wavelength of 1550 nm. Among different such silicon nitride square-core buried waveguides, we propose a typical design with dimensions of 400 nm × 400 nm along its height and width, capable of producing a highly coherent broadband intensity spectrum ranging from 810 nm to 5441 nm after propagating through just a few millimeters of the waveguide. The group velocity dispersion maintains minimal value over a broad wavelength range in the mid-IR region, while the nonlinear coefficient is estimated to be sufficiently high. The nonlinear pulse propagation through such a waveguide leads to achieving an SC spanning over 2.76 octaves, sufficiently broader than previously reported silicon nitride-based waveguides. Furthermore, our calculations confirm the highly coherent nature of the generated SC. To the best of our knowledge, this is the first report of SC generation maintaining a high degree of coherence over such a wide wavelength range in the mid-IR zone using a square-core silicon nitride buried waveguide.
Broadband spectrum generation in Silicon nanocrystal-based dual-slot waveguide Somen Adhikary, Ritesh Das, Mousumi Basu Proceedings of the IEEE International Conference on VLSI Design, 2024 The generation of broadband spectrum in near-infrared regions has a very useful application in the domain of telecommunication. A silicon nanocrystal-based dual-slot waveguide was reported earlier to possess very low and flat group velocity dispersion and very high nonlinearity within an operating wavelength region of 1.2 to 1.6 pm which makes it a great candidate to achieve broadband spectrum generation within that wavelength range. In this work, we numerically study the generation of broadband frequency spectrum using in Silicon nanocrystal-based dual-slot waveguide. In this work, we have shown that using an un-chirped 90W super-Gaussian input pulse sharpness parameter 3 and with a temporal width of 500 fs results in a broadband intensity spectrum of wavelength span 1.284 to 1.836 pm covering the entire communication band starting from the O to L band, which makes it potentially applicable as a device in the field of communication and many more.
Generation of Asymmetric Triangular Pulse by A Dispersion and Nonlinearity Engineered Silicon Core Optical Fiber Atrayee Mishra, Binoy Krishna Ghosh, Dipankar Ghosh, Mousumi Basu Proceedings of the IEEE International Conference on VLSI Design, 2024 This work describes the nonlinear pulse reshaping towards an asymmetric triangular or saw-tooth pulse profile by suitably designing a silicon core single mode normal dispersion optical fiber. By judiciously optimizing the parameters of the input pulse, the fiber facilitates the transformation of a pre-chirped Gaussian pulse into the desired asymmetric triangular pulse (ATP) shape. The study on variation of doping concentration of the fiber core material leads to a significant change in two photon (TPA) absorption coefficients, thereby affecting the pulse reshaping towards asymmetric triangular pulse (ATP). As per our knowledge such type of ATP generation through a silicon core fiber has not been reported earlier.
Temperature Dependence of Nonlinear Pulse Reshaping Towards Parabolic Shape for a Silicon Core Single Mode Optical Fiber Binoy Krishna Ghosh, Dipankar Ghosh, Mousumi Basu IEEE Journal of Quantum Electronics, 2023 Normal dispersion highly nonlinear silicon core fibers (NDHNSCF) are designed and optimized within the single mode regime with the goal of generating stable parabolic pulses (PP) compatible with chip-scale devices. The research focuses on identifying optimal pulse parameters and essential gain value, enabling the formation of parabolic pulses within a short fiber length (~ cm) while maintaining stability over a comparatively longer length. Given that silicon, as a semiconductor core material, exhibits significant changes in fiber parameters when subjected to varying ambient temperatures, our primary objective is to investigate the effect of temperature on pulse reshaping through the proposed NDHNSCF. To the best of our knowledge, the systematic study on this specific type of nonlinear pulse reshaping under the external influence of ambient temperature and input pulse repetition rate has not been reported earlier.
Generation of Broadband Supercontinuum by a So-designed Silicon on Insulator (SOI) Rectangular Buried Waveguide Tiyas Das, Somen Adhikary, Mousumi Basu 2023 International Symposium on Devices Circuits and Systems Isdcs 2023 Conference Proceedings, 2023 The generation of supercontinuum in near-infrared regions is a very useful application in the domain of telecommunication. Here we numerically study the generation of supercontinuum using an SOI rectangular core buried waveguide. From our simulation, we find that using an un-chirped 1.4 KW input Gaussian pulse with a temporal width of 200 fs results in a broadband intensity spectrum of wavelength span 1.275 to 1.912 µm covering the entire communication band starting from O to L, which makes it potentially applicable in the field of communication and many more.
Performances of straight and bent dispersion decreasing fiber amplifiers in parabolic similariton pulse formation Codec 2009 4th International Conference on Computers and Devices for Communication, 2009
Highly coherent mid-infrared wideband supercontinuum generation by a silica cladded silicon nitride core buried waveguide S Adhikary, D Ghosh, M Basu Journal of Optics 26 (10), 105501 , 2024 2024 Citations: 4
Coherent Broadband Spectrum Generation in Rectangular Silicon Core Buried Waveguide Operated at Telecommunication Wavelength S Adhikary, D Ghosh, M Basu Silicon 16 (11), 4673-4682 , 2024 2024 Citations: 1
Proficient Reshaping towards Triangular Optical Pulses by Strategic Use of Physical and Virtual Gains in a Suitably Engineered Silicon Core Fiber A Mishra, BK Ghosh, D Ghosh, M Basu Silicon 16 (6), 2729-2741 , 2024 2024 Citations: 1
Generation of Asymmetric Triangular Pulse by A Dispersion and Nonlinearity Engineered Silicon Core Optical Fiber A Mishra, BK Ghosh, D Ghosh, M Basu 2024 37th International Conference on VLSI Design and 2024 23rd … , 2024 2024
Broadband spectrum generation in Silicon nanocrystal-based dual-slot waveguide S Adhikary, R Das, M Basu 2024 37th International Conference on VLSI Design and 2024 23rd … , 2024 2024
Triangular Pulse Generation by a Normal Dispersion Silicon Core Single Mode Fiber A Mishra, BK Ghosh, D Ghosh, M Basu Frontiers in Optics, FD4. 6 , 2023 2023
Generation of Broadband Supercontinuum by a So-designed Silicon on Insulator (SOI) Rectangular Buried Waveguide T Das, S Adhikary, M Basu 2023 International Symposium on Devices, Circuits and Systems (ISDCS) 1, 1-5 , 2023 2023
Designing a Silicon-on-Insulator (SOI) Waveguide with an Aim of Studying Nonlinear Pulse Reshaping Hemant, S Adhikary, M Basu Emerging Electronic Devices, Circuits and Systems: Select Proceedings of … , 2023 2023 Citations: 1
Designing a single-mode anomalous dispersion silicon core fiber for temporal multiplet formation BK Ghosh, D Ghosh, M Basu Applied Optics 61 (34), 10134-10142 , 2022 2022
Generation of High Repetition Rate Pulse Train by Using a Suitably Designed Silicon Core Optical Fiber BK Ghosh, D Ghosh, M Basu Laser Science, JTu4B. 33 , 2022 2022
Semiconductor Core Optical Fibers for the Purpose of Nonlinear pulse Reshaping S Singh, BK Ghosh, M Basu Journal of Physics: Conference Series 2357 (1), 012006 , 2022 2022
Generation of high-frequency pulse train by designing a buried SOI waveguide S Adhikary, Hemant, M Basu Journal of Physics: Conference Series 2357 (1), 012008 , 2022 2022 Citations: 1
Generation of Parabolic pulse by nonlinear pulse reshaping inside a Silicon on Insulator (SOI) Waveguide Hemant, S Adhikary, M Basu Journal of Physics: Conference Series 2357 (1), 012010 , 2022 2022
Generation of stable temporal doublet by a single-mode silicon core optical fiber BK Ghosh, D Ghosh, M Basu Journal of Optics 24 (5), 055503 , 2022 2022 Citations: 4
Time-transformation technique: An approach to achieve supercontinuum in normal dispersion fiber optic cascaded system along with phase modulator R Chatterjee, M Basu Optik 252, 168502 , 2022 2022
Nonlinear pulse reshaping in a typically designed silicon-on-insulator waveguide and its application to generate a high repetition rate pulse train S Adhikary, M Basu Journal of Optics 23 (12), 125506 , 2021 2021 Citations: 10
Time-transformation technique for generation of optical pulse multiplets in a single mode anomalous dispersion optical fiber R Chatterjee, M Basu Applied Optics 60 (31), 9809-9817 , 2021 2021 Citations: 4
Delafossite type CuCo0. 5Ti0. 5O2 composite structure: a futuristic ceramics for supercapacitor and EMI shielding application D Bhattacharya, D Ghoshal, D Mondal, BK Paul, J Pal, B Gupta, N Bose, ... Ceramics International 47 (7), 9907-9922 , 2021 2021 Citations: 40
Efficient generation of triangular optical pulses in an erbium-doped chalcogenide fiber amplifier by exploiting the time transformation technique R Chatterjee, M Basu Applied Optics 59 (36), 11371-11381 , 2020 2020 Citations: 3
Generation of Triangular Pulse by a Highly Nonlinear Normally Dispersive Chalcogenide Fiber S Adhikary, BK Ghosh, M Basu Progress in Optomechatronics: Proceedings of the 20th International … , 2020 2020
MOST CITED SCHOLAR PUBLICATIONS
Visible light driven degradation of brilliant green dye using titanium based ternary metal oxide photocatalyst D Bhattacharya, D Ghoshal, D Mondal, BK Paul, N Bose, S Das, M Basu Results in Physics 12, 1850-1858 , 2019 2019 Citations: 73
Study of optical properties of GeO2 nanocrystals as synthesized by hydrothermal technique N Bose, M Basu, S Mukherjee Materials Research Bulletin 47 (6), 1368-1373 , 2012 2012 Citations: 45
Delafossite type CuCo0. 5Ti0. 5O2 composite structure: a futuristic ceramics for supercapacitor and EMI shielding application D Bhattacharya, D Ghoshal, D Mondal, BK Paul, J Pal, B Gupta, N Bose, ... Ceramics International 47 (7), 9907-9922 , 2021 2021 Citations: 40
Generation of self-similar parabolic pulses by designing normal dispersion decreasing fiber amplifier as well as its staircase substitutes D Ghosh, M Basu, S Sarkar Journal of lightwave technology 27 (17), 3880-3887 , 2009 2009 Citations: 36
Prospective use of a normally dispersive step-index chalcogenide fiber in nonlinear pulse reshaping BK Ghosh, D Ghosh, M Basu Applied Optics 57 (13), 3348-3356 , 2018 2018 Citations: 14
Propagation of short soliton pulses through a parabolic index fiber with dispersion decreasing along length D Ghosh, M Basu Optics communications 281 (12), 3361-3368 , 2008 2008 Citations: 14
Nonlinear pulse reshaping in a typically designed silicon-on-insulator waveguide and its application to generate a high repetition rate pulse train S Adhikary, M Basu Journal of Optics 23 (12), 125506 , 2021 2021 Citations: 10
Triangular pulse generation by using chalcogenide fibers and creation of tunable High frequency oscillations from the Interaction of reshaped pulse pair S Adhikary, BK Ghosh, M Basu Optik 204, 164208 , 2020 2020 Citations: 10
Performance of different normal dispersion fibers to generate triangular optical pulses D Chowdhury, N Bose, D Ghosh, M Basu Optical and Quantum Electronics 49 (9), 294 , 2017 2017 Citations: 10
Potential use of nonlinearity-induced virtual gain on parabolic pulse formation in highly nonlinear tapered fiber system BK Ghosh, D Ghosh, M Basu Journal of Optics 21 (4), 045503 , 2019 2019 Citations: 9
Studying the effect of a central dip on the performance of a dispersion compensated fibre R Tewari, M Basu, HN Acharya Optics communications 174 (5-6), 405-411 , 2000 2000 Citations: 9
Silica based highly nonlinear fibers to generate parabolic self-similar pulses D Ghosh, D Chowdhury, M Basu Optical and Quantum Electronics 47 (8), 2615-2635 , 2015 2015 Citations: 8
Nonlinear pulse reshaping in a designed erbium-doped fiber amplifier with a multicladded index profile N Bose, D Ghosh, S Mukherjee, M Basu Optical Engineering 52 (8), 086104-086104 , 2013 2013 Citations: 8
Effect of grading on the characteristics of a dispersion compensated fibre M Basu, R Tewari, HN Acharya Optics communications 174 (1-4), 119-125 , 2000 2000 Citations: 8
Modified figure of merit for dispersion compensated optical fibres R Tewari, M Basu, HN Acharya Optics communications 155 (4-6), 260-262 , 1998 1998 Citations: 8
Spot Size Technique: A Theoretical Approach To Optimize Dispersion Compensated R Tewari, M Basu, HN Acharya Fiber and integrated optics 17 (3), 221-230 , 1998 1998 Citations: 8
Efficient dispersion tailoring by designing alternately arranged dispersion compensating fibers and fiber amplifiers to create self-similar parabolic pulses D Ghosh, M Basu Optics & Laser Technology 42 (8), 1301-1307 , 2010 2010 Citations: 7
Design considerations of depressed clad W-shaped single mode dispersion compensating fibers M Basu, S Roy Optik 117 (8), 377-387 , 2006 2006 Citations: 7
An efficient way of third-order dispersion compensation for reshaping parabolic pulses through normal dispersion fiber amplifier D Chowdhury, D Ghosh, M Basu Journal of Optics 20 (9), 095503 , 2018 2018 Citations: 6
Designing a graded index depressed clad non-zero dispersion shifted optical fiber for wide band transmission system D Ghosh, D Ghosh, M Basu Optik-International Journal for Light and Electron Optics 119 (2), 63-68 , 2008 2008 Citations: 6
