Demosthenes Koutsogeorgis

Scopus Publications

Generating all-optical frequency-multiplexed THz logic operations via fractal metasurfaces
Mohammadhossein Momtazpour, Lei Xu, Dou Feng, Anjali Chaudhary, Dominic Eberl-Craske, et al.
Applied Physics Letters, 2026
The realization of high-speed, low-power computing beyond conventional electronics demands new paradigms for optical logic processing. Here, we present a passive terahertz (THz) metasurface platform that enables intrinsic frequency-multiplexed logic operations within a single, compact device. By encoding logical inputs through orthogonal polarization states and exploiting the multi-resonant response of fractal H-shaped metastructures, the proposed system performs multiple logic operations simultaneously across the 0.2–2.0 THz band. Unlike existing approaches that rely on active tuning or sequential execution, our design achieves parallel logic functionality in a fully passive and multiplexed architecture. Experimental validation using THz time-domain spectroscopy confirms broadband operation with extinction ratios up to 9.09 dB and robust safety margins exceeding 10%. This work establishes a scalable route toward compact, energy-efficient, and all-optical parallel computing systems in the THz regime.
Spectral Selectivity Enhancement in Solar Absorber Multilayers through Titanium Oxynitride Thin Film Modulation
Claudia P. Hallqvist, Cristina Mancarella, Marco Agozzino, Salvatore Lucchese, Luca Mascaretti, et al.
Advanced Optical Materials, 2026
Broadband photothermal materials with spectral selectivity and stability in harsh environments are crucial for high‐temperature solar‐thermal systems. Additionally, achieving broadband absorption without relying on metamaterials remains a challenge. Refractory titanium nitride (TiN) and oxynitride (TiON), with their high infrared (IR) reflectance and tunable optical/plasmonic properties, are promising candidates for such applications. However, their susceptibility to oxidation complicates synthesis. Here, a straightforward approach is demonstrated to synthesize and tune the optical/plasmonic properties of TiN/TiON thin films by simply controlling the oxygen pressure during room‐temperature pulsed laser deposition. Specifically, it is shown that highly metallic Ti(O)N films, as well as TiON films exhibiting double‐epsilon‐near‐zero (D‐ENZ) behavior in the optical region, can be obtained. This tunability enabled the design and fabrication of a nitride‐based multilayer with optimized solar‐selective absorption. In particular, a highly metallic TiN film was employed as the bottom layer, while a TiON ultrathin film exhibiting D‐ENZ behavior was used as the absorbing layer. The resulting device achieved 91% solar absorption, 80% mid‐IR reflectance, and maintained broadband absorption at incident angles up to 70°. These findings establish a lithography‐free, thermally untreated route to broadband, spectrally selective absorbers, based on tunable Ti(O)N films, opening new opportunities for next‐generation high‐temperature energy harvesting applications.
Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, et al.
Advanced Functional Materials, 2026
Despite the great potential of lead‐halide perovskite photodetectors for broadband photodetection, ion migration in perovskites and parasitic charge injection from adjacent layers remain major challenges, ultimately leading to device failure. Here, the novel use of an ultra‐thin layer of ferrocenyl‐bis‐phenyl‐2‐carboxylate (FcPhc2) is demonstrated as a hole‐blocking layer. It is shown that FcPhc2 creates an energetic barrier between the perovskite and the electron transport layer, significantly reducing hole injection from the Ag contact. This improvement results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V and 740 nm. In addition, FcPhc2 effectively inhibits I− oxidation induced by injected holes and reduces formed I2 on the perovskite surface, enhancing reverse bias stability. The increase in detectivity and stability does not compromise the high response speed of FcPhc2‐based devices that operate on the scale of 150 ns and 1.3 MHz at −0.5 V in photo‐ and electrical‐responses.
Defect engineering and dopant activation of room temperature grown aluminium-doped zinc oxide thin films
Salem O. Elhamali, Nikolaos Pliatsikas, James A. Hillier, Wayne M. Cranton, X. Hou, et al.
Applied Surface Science Advances, 2025
Advanced Solar Cells with Thermal, Radiation, and Light Management for Space-Based Solar Power
Eduardo Camarillo Abad, Kai Sun, Armin Barthel, Oliver Trojak, Nikolaos Kalfagiannis, et al.
Solar Rrl, 2025
Space‐based solar power (SBSP) can provide clean and continuous baseload energy by beaming solar power to our planet from photovoltaic arrays in space. While it is widely acknowledged that gigawatt‐level, kilometer‐scale solar stations in space are required to make SBSP a cost‐competitive energy source, these systems can only be viable by implementing lightweight, radiation tolerant, deployable, and low‐cost photovoltaic technologies. Here, advanced solar cells with thermal, radiation, and light management (ASTRAL) is presented, a photovoltaic device conceived for SBSP that consists of an ultra‐thin tandem solar cell with flexible form factors, ultra‐low weight, intrinsic radiation tolerance, and integrated light and thermal management. Through rigorous thermal, radiation, and optical device modeling, it is demonstarted that ASTRAL achieves decades‐long lifetimes on SBSP‐relevant orbits with 30 reduction in radiation shielding mass and corresponding launch costs, all while enabling power generation in excess of 1 kW/m2 at operating temperatures C. Together, these properties make ASTRAL a state‐of‐the‐art photovoltaic technology and a compelling candidate for the practical delivery of SBSP.
Nano-Optic Augmented Micro-LED Arrays
Graham J. Woodgate, Jonathan Harrold, Michael G. Robinson, Nicasio R. Geraldi, Demosthenes C. Koutsogeorgis
Digest of Technical Papers SID International Symposium, 2025
A new class of nano‐optic augmented micro‐LED array, fabricated by mass transfer of nano‐optical structures is proposed for application to polarised, colour converted and directional output for AR/VR, stereoscopic, privacy, and foldable/rollable micro‐LED displays. Candidate nano‐optic structures and manufacturing process steps are presented. To illustrate fabrication principles, a micro‐LED array with orthogonal sparse nano‐polarisers demonstrated >8:1 photoluminescence polarisation contrast ratio.
LSPR-Based Fibre Optic Sensor Fabricated by Laser Annealing of Thin Gold Films
Hamid Reza Solaimany Nazar, Demosthenes Koutsogeorgis, Cuifeng Ying, Jing Yang, Qimei Zhang
Proceedings of SPIE the International Society for Optical Engineering, 2025
Plasmonic Multilayers Metamaterials combining Nitrides, Oxynitrides and Transparent Conductors with novel, broad and tunable properties
International Conference on Metamaterials Photonic Crystals and Plasmonics, 2025
Fabrication of nitrogen-hyperdoped silicon by high-pressure gas immersion excimer laser doping
Josh W. Barkby, Fabrizio Moro, Michele Perego, Fabiana Taglietti, Elefterios Lidorikis, et al.
Scientific Reports, 2024
In recent years, research on hyperdoped semiconductors has accelerated, displaying dopant concentrations far exceeding solubility limits to surpass the limitations of conventionally doped materials. Nitrogen defects in silicon have been extensively investigated for their unique characteristics compared to other pnictogen dopants. However, previous practical investigations have encountered challenges in achieving high nitrogen defect concentrations due to the low solubility and diffusivity of nitrogen in silicon, and the necessary non-equilibrium techniques, such as ion implantation, resulting in crystal damage and amorphisation. In this study, we present a single-step technique called high-pressure gas immersion excimer laser doping (HP-GIELD) to manufacture nitrogen-hyperdoped silicon. Our approach offers ultrafast processing, scalability, high control, and reproducibility. Employing HP-GIELD, we achieved nitrogen concentrations exceeding 6 at% (3.01 × 10 21 at/cm 3 ) in intrinsic silicon. Notably, nitrogen concentration remained above the liquid solubility limit to ~1 µm in depth. HP-GIELD’s high-pressure environment effectively suppressed physical surface damage and the generation of silicon dangling bonds, while the well-known effects of pulsed laser annealing (PLA) preserved crystallinity. Additionally, we conducted a theoretical analysis of light-matter interactions and thermal effects governing nitrogen diffusion during HP-GIELD, which provided insights into the doping mechanism. Leveraging excimer lasers, our method is well-suited for integration into high-volume semiconductor manufacturing, particularly front-end-of-line processes.
Broadband infrared imaging governed by guided-mode resonance in dielectric metasurfaces
Ze Zheng, Daria Smirnova, Gabriel Sanderson, Ying Cuifeng, Demosthenes C. Koutsogeorgis, et al.
Light Science and Applications, 2024
Nonlinear metasurfaces have experienced rapid growth recently due to their potential in various applications, including infrared imaging and spectroscopy. However, due to the low conversion efficiencies of metasurfaces, several strategies have been adopted to enhance their performances, including employing resonances at signal or nonlinear emission wavelengths. This strategy results in a narrow operational band of the nonlinear metasurfaces, which has bottlenecked many applications, including nonlinear holography, image encoding, and nonlinear metalenses. Here, we overcome this issue by introducing a new nonlinear imaging platform utilizing a pump beam to enhance signal conversion through four-wave mixing (FWM), whereby the metasurface is resonant at the pump wavelength rather than the signal or nonlinear emissions. As a result, we demonstrate broadband nonlinear imaging for arbitrary objects using metasurfaces. A silicon disk-on-slab metasurface is introduced with an excitable guided-mode resonance at the pump wavelength. This enabled direct conversion of a broad IR image ranging from >1000 to 4000 nm into visible. Importantly, adopting FWM substantially reduces the dependence on high-power signal inputs or resonant features at the signal beam of nonlinear imaging by utilizing the quadratic relationship between the pump beam intensity and the signal conversion efficiency. Our results, therefore, unlock the potential for broadband infrared imaging capabilities with metasurfaces, making a promising advancement for next-generation all-optical infrared imaging techniques with chip-scale photonic devices.
Development and Optimisation of Textile-Based Optical Sensors for Cardiac Health Monitoring
Tharushi Peiris, Arash Shahidi, Demosthenes Koutsogeorgis, William Hurley, Carlos Oliveira, et al.
2024 International Conference on the Challenges Opportunities Innovations and Applications in Electronic Textiles E Textiles 2024, 2024
Further Optimization of Solar Electronic Yarns for Developing Large, Stretchable Knitted Textile Solar Panels
Parvin Ebrahimi, Arash Moghadassian Shahidi, Demosthenes Koutsogeorgis, Carlos Oliveira, Jake Kaner, et al.
2024 International Conference on the Challenges Opportunities Innovations and Applications in Electronic Textiles E Textiles 2024, 2024
Broadband Infrared Imaging via Silicon Metasurfaces
Ze Zheng, Gabriel Sanderson, Cuifeng Ying, Demosthenes Koutsogeorgis, Zixi Liu, et al.
2024 Conference on Lasers and Electro Optics CLEO 2024, 2024
Broadband Infrared Imaging via Silicon Metasurfaces
CLEO Science and Innovations CLEO S and I 2024 in Proceedings CLEO 2024 Part of Conference on Lasers and Electro Optics, 2024
Physicochemical Analysis of Nanoscale Metal Oxide Thin Film Precursors via Infrared Spectroscopic Ellipsometry
Christina Koutsiaki, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis
Journal of Physical Chemistry C, 2023
Photo-engineered optoelectronic properties of indium tin oxide via reactive laser annealing
James Arthur Hillier, Panos Patsalas, Dimitrios Karfaridis, Sophie Camelio, Wayne Cranton, et al.
Scientific Reports, 2022
Reactive laser annealing of indium tin oxide: implications to crystal structure, defect composition, and plasma energy
James Arthur Hillier, Panos Patsalas, Dimitrios Karfardis, Wayne Cranton, Alexi V. Nabok, et al.
Optical Materials Express, 2022
Edge-engineered self-assembled hierarchical plasmonic SERS templates
N. Pliatsikas, N. Kalfagiannis, J. Arvanitidis, D. Christofilos, D.C. Koutsogeorgis, et al.
Applied Surface Science Advances, 2021
Laser annealing of thin film electroluminescent devices deposited at a high rate using high target utilization sputtering
S J Wakeham, C Tsakonas, W M Cranton, M J Thwaites, G Boutaud, et al.
Semiconductor Science and Technology, 2021
When ellipsometry works best: A case study with transparent conductive oxides
James A. Hillier, Sophie Camelio, Wayne Cranton, Alexei V. Nabok, Christopher J. Mellor, et al.
ACS Photonics, 2020
Laser induced ultrafast combustion synthesis of solution-based AlO: X for thin film transistors
Emanuel Carlos, Spilios Dellis, Nikolaos Kalfagiannis, Loukas Koutsokeras, Demosthenes C. Koutsogeorgis, et al.
Journal of Materials Chemistry C, 2020
Recent Progress in Photonic Processing of Metal-Oxide Transistors
Emre Yarali, Christina Koutsiaki, Hendrik Faber, Kornelius Tetzner, Emre Yengel, et al.
Advanced Functional Materials, 2020
Broadband luminescence in defect-engineered electrochemically produced porous Si/ZnO nanostructures
S. Dellis, N. Pliatsikas, N. Kalfagiannis, O. Lidor-Shalev, A. Papaderakis, et al.
Scientific Reports, 2018
Memory performance of MOS structure embedded with laser annealed gold NCs
L. Kastanis, J.L. Spear, Ch. Sargentis, N. Konofaos, D. Tsamakis, et al.
Solid State Electronics, 2018
Auxetic Cardiac Patches with Tunable Mechanical and Conductive Properties toward Treating Myocardial Infarction
Michaella Kapnisi, Catherine Mansfield, Camille Marijon, Anne Geraldine Guex, Filippo Perbellini, et al.
Advanced Functional Materials, 2018
Low temperature sputter-deposited ZnO films with enhanced Hall mobility using excimer laser post-processing
C Tsakonas, V L Kuznetsov, W M Cranton, N Kalfagiannis, K M Abusabee, et al.
Journal of Physics D Applied Physics, 2017
Simulating the opto-thermal processes involved in laser induced self-assembly of surface and sub-surface plasmonic nano-structuring
D.V. Bellas, D. Toliopoulos, N. Kalfagiannis, A. Siozios, P. Nikolaou, et al.
Thin Solid Films, 2017
Photoluminescence enhancement of ZnO via coupling with surface plasmons on Al thin films
S. Dellis, N. Kalfagiannis, S. Kassavetis, C. Bazioti, G. P. Dimitrakopulos, et al.
Journal of Applied Physics, 2017
Rapid laser-induced photochemical conversion of sol-gel precursors to In2O3 layers and their application in thin-film transistors
Spilios Dellis, Ivan Isakov, Nikolaos Kalfagiannis, Kornelius Tetzner, Thomas D. Anthopoulos, et al.
Journal of Materials Chemistry C, 2017
Laser-driven structural modifications and diffusion phenomena of plasmonic AlN/Ag stratified films
E. Delli, C. Bazioti, N. Pliatsikas, N. Kalfagiannis, G. Vourlias, et al.
Surface and Coatings Technology, 2016
Enhanced electrical and optical properties of room temperature deposited Aluminium doped Zinc Oxide (AZO) thin films by excimer laser annealing
S.O. El hamali, W.M. Cranton, N. Kalfagiannis, X. Hou, R. Ranson, et al.
Optics and Lasers in Engineering, 2016
Selective modification of nanoparticle arrays by laser-induced self assembly (MONA-LISA): Putting control into bottom-up plasmonic nanostructuring
Nikolaos Kalfagiannis, Anastasios Siozios, Dimitris V. Bellas, Dimosthenis Toliopoulos, Leon Bowen, et al.
Nanoscale, 2016
Transparent and Flexible Thin Film Electroluminescent Devices Using HiTUS Deposition and Laser Processing Fabrication
Costas Tsakonas, Steve Wakeham, Wayne M. Cranton, Mike Thwaites, Gabriel Boutaud, et al.
IEEE Journal of the Electron Devices Society, 2016
Laser-matter interactions, phase changes and diffusion phenomena during laser annealing of plasmonic AlN:Ag templates and their applications in optical encoding
A Siozios, D C Koutsogeorgis, E Lidorikis, G P Dimitrakopulos, N Pliatsikas, et al.
Journal of Physics D Applied Physics, 2015
Sub-surface laser nanostructuring in stratified metal/dielectric media: A versatile platform towards flexible, durable and large-scale plasmonic writing
A Siozios, N Kalfagiannis, D V Bellas, C Bazioti, G P Dimitrakopulos, et al.
Nanotechnology, 2015
An alternative non-vacuum and low cost ESAVD method for the deposition of Cu(In,Ga)Se2 absorber layers
Mingqing Wang, Xianghui Hou, Junpeng Liu, KwangLeong Choy, Paul Gibson, et al.
Physica Status Solidi A Applications and Materials Science, 2015
Growth and annealing strategies to control the microstructure of AlN: AG nanocomposite films for plasmonic applications
A. Siozios, H. Zoubos, N. Pliatsikas, D.C. Koutsogeorgis, G. Vourlias, et al.
Surface and Coatings Technology, 2014
Influence of laser annealing on the structural properties of sputtered AlN:Ag plasmonic nanocomposites
C. Bazioti, G. P. Dimitrakopulos, Th. Kehagias, Ph. Komninou, A. Siozios, et al.
Journal of Materials Science, 2014
Intrinsic photoluminescence from low temperature deposited zinc oxide thin films as a function of laser and thermal annealing
Journal of Physics D Applied Physics, 2013
Optical encoding by plasmon-based patterning: Hard and inorganic materials become photosensitive
A. Siozios, D. C. Koutsogeorgis, E. Lidorikis, G. P. Dimitrakopulos, Th. Kehagias, et al.
Nano Letters, 2012
Photosensitivity and optical performance of hydrogenated amorphous carbon films processed by picosecond laser beams
N.T. Panagiotopoulos, G. Karras, E. Lidorikis, D.C. Koutsogeorgis, C. Kosmidis, et al.
Surface and Coatings Technology, 2011
A new reactive sputtering technique for the low temperature deposition of transparent light emitting ZnS:Mn thin films
Steve Wakeham, Mike Thwaites, Costas Tsakonas, Wayne Cranton, Robert Ranson, et al.
Physica Status Solidi A Applications and Materials Science, 2010
Growth optimisation of ZnS:Mn thin film phosphors for high intensity miniature electroluminescent displays
G. Boutaud, W.M. Cranton, D.C. Koutsogeorgis, R.M. Ranson, C. Tsakonas, et al.
Materials Science and Engineering B, 2009
Low temperature remote plasma sputtering of indium tin oxide for flexible display applications
S.J. Wakeham, M.J. Thwaites, B.W. Holton, C. Tsakonas, W.M. Cranton, et al.
Thin Solid Films, 2009
Performance enhancement of ZnS:Mn thin film electroluminescent devices by combination of laser and thermal annealing
Demosthenes C. Koutsogeorgis, Wayne M. Cranton, Robert M. Ranson, Clive B. Thomas
Journal of Alloys and Compounds, 2009
Temperature dependent characteristics of La2O2S: Ln [Ln=Eu, Tb] with various Ln concentrations over 5-60 °C
Sook Voon Yap, Robert M. Ranson, Wayne M. Cranton, Demosthenes C. Koutsogeorgis, Gary B. Hix
Journal of Luminescence, 2009
Decay time characteristics of la2O2S: Eu and la 2O2S: Tb for use within an optical sensor for human skin temperature measurement
Sook Voon Yap, Robert M. Ranson, Wayne M. Cranton, Demosthenes Koutsogeorgis
Applied Optics, 2008
Excimer laser processing of inkjet-printed and sputter-deposited transparent conducting SnO2:Sb for flexible electronics
Wayne M. Cranton, Sharron L. Wilson, Robert Ranson, Demosthenes C. Koutsogeorgis, Kuangnan Chi, et al.
Thin Solid Films, 2007
Optimization of the electrical and optical properties of ink-jet-printed SnO(2):Sb using thermal annealing and excimer-laser processing
S. L. Wilson, W. M. Cranton, R. Ranson, D. C. Koutsogeorgis, A. Mosley, et al.
Digest of Technical Papers SID International Symposium, 2005
Pulsed KrF laser annealing of blue emitting SrS:Cu,Ag thin films
S.C. Liew, D.C. Koutsogeorgis, W.M. Cranton, C.B. Thomas
Electronics Letters, 2002
Optically transparent frequency selective window for microwave applications
C. Tsakonas, S.C. Liew, C. Mias, D.C. Koutsogeorgis, R.M. Ranson, et al.
Electronics Letters, 2001
Pulsed KrF laser annealing of ZnS:Mn laterally emitting thin film electroluminescent displays
D.C. Koutsogeorgis, E.A. Mastio, W.M. Cranton, C.B. Thomas
Thin Solid Films, 2001
Optically transparent microstrip antennas
IEE Colloquium Digest, 2000

RECENT SCHOLAR PUBLICATIONS

Generating all-optical frequency-multiplexed THz logic operations via fractal metasurfaces
M Momtazpour, L Xu, D Feng, A Chaudhary, D Eberl-Craske, C Tsakonas, ...
Applied Physics Letters 128 (18) , 2026
2026
Spectral Selectivity Enhancement in Solar Absorber Multilayers through Titanium Oxynitride Thin Film Modulation
CP Hallqvist, C Mancarella, M Agozzino, S Lucchese, L Mascaretti, ...
Advanced Optical Materials 14 (15), e03426 , 2026
2026
Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability
E Hong, WDJ Tremlett, L Hart, B Hu, Z Qiao, P Sukpoonprom, S Fearn, ...
Advanced Functional Materials 36 (21), 2424556 , 2026
2026
Citations: 7
Defect engineering and dopant activation of room temperature grown aluminium-doped zinc oxide thin films
SO Elhamali, N Pliatsikas, JA Hillier, WM Cranton, X Hou, N Kalfagiannis, ...
Applied Surface Science Advances 30, 100879 , 2025
2025
P‐243: Late‐News Poster: Nano‐Optic Augmented Micro‐LED Arrays
GJ Woodgate, J Harrold, MG Robinson, NR Geraldi, DC Koutsogeorgis
SID Symposium Digest of Technical Papers 56 (1), 1996-1999 , 2025
2025
Local Tuning of the Epsilon‐Near‐Zero Condition in Hybrid Silicon Waveguides Using Reactive Laser Annealing
J Navarro‐Arenas, TM Howe, J Parra, DC Koutsogeorgis, JA Hillier, ...
Advanced Photonics Research 6 (6), 2400140 , 2025
2025
Citations: 1
LSPR-based fibre optic sensor fabricated by laser annealing of thin gold films
HR Solaimany Nazar, DC Koutsogeorgis, C Ying, J Yang, Q Zhang
SPIE-International Society for Optical Engineering. Proceedings 13639 , 2025
2025
Advanced Solar Cells with Thermal, Radiation, and Light Management for Space‐Based Solar Power
E Camarillo Abad, K Sun, A Barthel, O Trojak, N Kalfagiannis, ...
Solar RRL 9 (10), 2500016 , 2025
2025
Citations: 4
Plasmonic Multilayers Metamaterials combining Nitrides, Oxynitrides and Transparent Conductors with novel, broad and tunable properties
C Mancarella, C Hallqvist, S Bossetti, L Tovaglieri, G Baiardi, A Lamperti, ...
International Conference on Metamaterials, Photonic Crystals and Plasmonics … , 2025
2025
Development and Optimisation of Textile-Based Optical Sensors for Cardiac Health Monitoring
T Peiris, A Shahidi, D Koutsogeorgis, W Hurley, C Oliveira, T Dias, ...
2024 International Conference on the Challenges, Opportunities, Innovations … , 2024
2024
Citations: 1
Further optimization of solar electronic yarns for developing large, stretchable knitted textile solar panels
P Ebrahimi, AM Shahidi, D Koutsogeorgis, C Oliveira, J Kaner, T Dias, ...
2024 International Conference on the Challenges, Opportunities, Innovations … , 2024
2024
Citations: 1
Broadband infrared imaging governed by guided-mode resonance in dielectric metasurfaces
Z Zheng, D Smirnova, G Sanderson, Y Cuifeng, DC Koutsogeorgis, ...
Light: Science & Applications 13 (1), 249 , 2024
2024
Citations: 43
Fabrication of nitrogen-hyperdoped silicon by high-pressure gas immersion excimer laser doping
JW Barkby, F Moro, M Perego, F Taglietti, E Lidorikis, N Kalfagiannis, ...
Scientific Reports 14 (1), 19640 , 2024
2024
Citations: 7
Broadband Infrared Imaging via Silicon Metasurfaces
Z Zheng, G Sanderson, C Ying, D Koutsogeorgis, Z Liu, R Oulton, ...
2024 Conference on Lasers and Electro-Optics (CLEO), 1-2 , 2024
2024
Method of creating a surface plasmon resonance
GW MUDD, D Koutsogeorgis, N Kalfagiannis, R RENTON, P Dunn
US Patent App. 18/262,936 , 2024
2024
Physicochemical analysis of nanoscale metal oxide thin film precursors via infrared spectroscopic ellipsometry
C Koutsiaki, DC Koutsogeorgis, N Kalfagiannis
The Journal of Physical Chemistry C 127 (32), 15876-15886 , 2023
2023
Citations: 5
Reactive laser annealing of indium tin oxide: implications to crystal structure, defect composition, and plasma energy
JA Hillier, P Patsalas, D Karfardis, W Cranton, AV Nabok, CJ Mellor, ...
Optical Materials Express 12 (11), 4310-4327 , 2022
2022
Citations: 6
Photo-engineered optoelectronic properties of indium tin oxide via reactive laser annealing
JA Hillier, P Patsalas, D Karfaridis, S Camelio, W Cranton, AV Nabok, ...
Scientific Reports 12 (1), 14986 , 2022
2022
Citations: 9
Environmental stability evaluation of aluminium doped zinc oxide (azo) transparent electrodes deposited at low temperature for solar cells
OS Elhamali, MN Akhil, KM Abusabee, N Kalfagiannis, DC Doutsogeorgis
Journal of Solar Energy and Sustainable Development 11 (1), 1-12 , 2022
2022
Citations: 2
Edge-engineered self-assembled hierarchical plasmonic SERS templates
N Pliatsikas, N Kalfagiannis, J Arvanitidis, D Christofilos, ...
Applied Surface Science Advances 6, 100186 , 2021
2021
Citations: 8

MOST CITED SCHOLAR PUBLICATIONS

Auxetic cardiac patches with tunable mechanical and conductive properties toward treating myocardial infarction
M Kapnisi, C Mansfield, C Marijon, AG Guex, F Perbellini, I Bardi, ...
Advanced functional materials 28 (21), 1800618 , 2018
2018
Citations: 325
Recent progress in photonic processing of metal‐oxide transistors
E Yarali, C Koutsiaki, H Faber, K Tetzner, E Yengel, P Patsalas, ...
Advanced Functional Materials 30 (20), 1906022 , 2020
2020
Citations: 126
Low temperature remote plasma sputtering of indium tin oxide for flexible display applications
SJ Wakeham, MJ Thwaites, BW Holton, C Tsakonas, WM Cranton, ...
Thin Solid Films 518 (4), 1355-1358 , 2009
2009
Citations: 104
Enhanced electrical and optical properties of room temperature deposited Aluminium doped Zinc Oxide (AZO) thin films by excimer laser annealing
WM Cranton, N Kalfagiannis, X Hou, R Ranson, DC Koutsogeorgis
Optics and Lasers in Engineering 80, 45-51 , 2016
2016
Citations: 92
Selective modification of nanoparticle arrays by laser-induced self assembly (MONA-LISA): putting control into bottom-up plasmonic nanostructuring
N Kalfagiannis, A Siozios, DV Bellas, D Toliopoulos, L Bowen, ...
Nanoscale 8 (15), 8236-8244 , 2016
2016
Citations: 59
Optically transparent microstrip antennas
C Mias, C Tsakonas, N Prountzos, DC Koutsogeorgis, SC Liew, C Oswald, ...
IEE Colloquium on Antennas for Automotives, 8/1-8/6 , 2000
2000
Citations: 57
Optical Encoding by Plasmon-Based Patterning: Hard and Inorganic Materials Become Photosensitive
A Siozios, D Koutsogeorgis, E Lidorikis, G Dimitrakopulos, T Kehagias, ...
Nano Letters 12 (1), 259-263 , 2012
2012
Citations: 56
Rapid laser-induced photochemical conversion of sol–gel precursors to In 2 O 3 layers and their application in thin-film transistors
S Dellis, I Isakov, N Kalfagiannis, K Tetzner, TD Anthopoulos, ...
Journal of Materials Chemistry C 5 (15), 3673-3677 , 2017
2017
Citations: 51
Temperature dependent characteristics of La2O2S: Ln [Ln= Eu, Tb] with various Ln concentrations over 5–60° C
SV Yap, RM Ranson, WM Cranton, DC Koutsogeorgis, GB Hix
Journal of luminescence 129 (5), 416-422 , 2009
2009
Citations: 51
Intrinsic photoluminescence from low temperature deposited zinc oxide thin films as a function of laser and thermal annealing
C Tsakonas, W Cranton, F Li, K Abusabee, A Flewitt, D Koutsogeorgis, ...
Journal of Physics D: Applied Physics 46 (9), 095305 , 2013
2013
Citations: 49
Broadband infrared imaging governed by guided-mode resonance in dielectric metasurfaces
Z Zheng, D Smirnova, G Sanderson, Y Cuifeng, DC Koutsogeorgis, ...
Light: Science & Applications 13 (1), 249 , 2024
2024
Citations: 43
Broadband luminescence in defect-engineered electrochemically produced porous Si/ZnO nanostructures
S Dellis, N Pliatsikas, N Kalfagiannis, O Lidor-Shalev, A Papaderakis, ...
Scientific Reports 8 (1), 6988 , 2018
2018
Citations: 42
Excimer laser processing of inkjet-printed and sputter-deposited transparent conducting SnO2: Sb for flexible electronics
WM Cranton, SL Wilson, R Ranson, DC Koutsogeorgis, K Chi, R Hedgley, ...
Thin Solid Films 515 (24), 8534-8538 , 2007
2007
Citations: 37
Optically transparent frequency selective window for microwave applications
C Tsakonas, SC Liew, C Mias, DC Koutsogeorgis, RM Ranson, ...
Electronics Letters 37 (24), 1464-1466 , 2001
2001
Citations: 37
Laser induced ultrafast combustion synthesis of solution-based AlO x for thin film transistors
E Carlos, S Dellis, N Kalfagiannis, L Koutsokeras, DC Koutsogeorgis, ...
Journal of Materials Chemistry C 8 (18), 6176-6184 , 2020
2020
Citations: 34
Growth and annealing strategies to control the microstructure of AlN: Ag nanocomposite films for plasmonic applications
A Siozios, H Zoubos, N Pliatsikas, DC Koutsogeorgis, G Vourlias, ...
Surface and coatings technology 255, 28-36 , 2014
2014
Citations: 34
Decay time characteristics of and for use within an optical sensor for human skin temperature measurement
SV Yap, RM Ranson, WM Cranton, D Koutsogeorgis
Applied optics 47 (27), 4895-4899 , 2008
2008
Citations: 28
Pulsed KrF laser annealing of ZnS: Mn laterally emitting thin film electroluminescent displays
DC Koutsogeorgis, EA Mastio, WM Cranton, CB Thomas
Thin Solid Films 383 (1-2), 31-33 , 2001
2001
Citations: 27
Growth optimisation of ZnS: Mn thin film phosphors for high intensity miniature electroluminescent displays
G Boutaud, WM Cranton, DC Koutsogeorgis, RM Ranson, C Tsakonas, ...
Materials Science and Engineering: B 165 (3), 202-206 , 2009
2009
Citations: 25
When ellipsometry works best: A case study with transparent conductive oxides
JA Hillier, S Camelio, W Cranton, AV Nabok, CJ Mellor, ...
ACS photonics 7 (10), 2692-2702 , 2020
2020
Citations: 24

Demosthenes Koutsogeorgis

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