Dr. George Dabos Profile

Dr. George Dabos

at Aristotle Univ of Thessaloniki

SPIE Involvement:

Author

Publications (18)

SPIE Journal Paper | 1 February 2023 Open Access

Open Access

Neuromorphic silicon photonics with 50 GHz tiled matrix multiplication for deep-learning applications

George Giamougiannis, Apostolos Tsakyridis, Miltiadis Moralis-Pegios, George Mourgias-Alexandris, Angelina R. Totovic, George Dabos, Manos Kirtas, Nikolaos Passalis, Anastasios Tefas, Dimitrios Kalavrouziotis, Dimitris Syrivelis, Paraskevas Bakopoulos, Elad Mentovich, David Lazovsky, Nikos Pleros

AP, Vol. 5, Issue 01, 016004, (February 2023) https://doi.org/10.1117/12.10.1117/1.AP.5.1.016004

KEYWORDS: Matrices, Neurons, Matrix multiplication, Silicon photonics, Time division multiplexing, Education and training, Analog electronics, Computer architecture, Picosecond phenomena, Optical computing

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Proceedings Article | 5 March 2022 Presentation + Paper

Presentation + Paper

Coherent photonic neuromorphic computing for high-speed deep learning applications

Miltiadis Moralis-Pegios, George Mourgias-Alexandris, Apostolos Tsakyridis, George Giamougiannis, Angelina Totovic, George Dabos, Nikos Pleros

Proceedings Volume 12007, 1200706 (2022) https://doi.org/10.1117/12.2606041

KEYWORDS: Prototyping, Optical computing, Neurons, Energy efficiency, Performance modeling, Axons, Analog electronics, Photonic integrated circuits, Neural networks, Integrated optics

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Proceedings Article | 5 March 2021 Presentation + Paper

Presentation + Paper

End-to-end deep learning with neuromorphic photonics

G. Dabos, G. Mourgias-Alexandris, A. Totovic, M. Kirtas, N. Passalis, A. Tefas, N. Pleros

Proceedings Volume 11689, 116890I (2021) https://doi.org/10.1117/12.2587668

KEYWORDS: Photonics, Neurons, Digital signal processing, Neural networks, Energy efficiency, Electronic components, Computer architecture, Brain, Artificial intelligence

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Proceedings Article | 26 February 2020 Presentation + Paper

Presentation + Paper

High-sensitivity plasmo-photonic interferometric sensors on a chip

E. Chatzianagnostou, A. Manolis, G. Dabos, D. Ketzaki, B. Chmielak, A. L. Giesecke, C. Porschatis, P. Cegielski, S. Suckow, L. Markey, J.-C. Weeber, A. Dereux, S. Schrittwieser, R. Heer, N. Pleros, D. Tsiokos

Proceedings Volume 11284, 112841V (2020) https://doi.org/10.1117/12.2543547

KEYWORDS: Sensors, Waveguides, Plasmonics, Photonics, Silicon, Plasmonic waveguides, Refractive index, Gold, Interferometry, Aluminum

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Proceedings Article | 26 February 2020 Presentation + Paper

Presentation + Paper

Neuromorphic computing through photonic integrated circuits

G. Mourgias-Alexandris, A. Totovic, N. Passalis, G. Dabos, A. Tefas, N. Pleros

Proceedings Volume 11284, 1128403 (2020) https://doi.org/10.1117/12.2543781

KEYWORDS: Neurons, Modulators, Linear algebra, Phase shifts, Photonic integrated circuits, Neural networks, Optical components, Wavelength division multiplexing, Modulation, Eye

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Proceedings Article | 4 March 2019 Paper

Paper

Ultra-sensitive plasmo-photonic MZI-based refractive index sensor

A. Manolis, E. Chatzianagnostou, G. Dabos, L. Markey, J.-C. Weeber, A. Dereux, Anna-Lena Giesecke, C. Porschatis, Bartos Chmielak, N. Pleros, D. Tsiokos

Proceedings Volume 10921, 1092126 (2019) https://doi.org/10.1117/12.2510041

KEYWORDS: Sensors, Photonics, Refractive index, Plasmonics, Waveguides, Interfaces, Silicon, Metals, Plasmonic waveguides, Device simulation

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Proceedings Article | 4 March 2019 Presentation + Paper

Presentation + Paper

Ultra-compact single-arm interferometric plasmonic sensor co-integrated on a TiO2 photonic waveguide platform

E. Chatzianagnostou, G. Dabos, A. Manolis, L. Markey, J.-C. Weeber, A. Dereux, D. Tsiokos, N. Pleros

Proceedings Volume 10921, 109211K (2019) https://doi.org/10.1117/12.2509951

KEYWORDS: Waveguides, Plasmonics, Sensors, Metals, Refractive index, Interferometry, Plasmonic waveguides, Plasmonic sensors, Titanium dioxide, Interfaces

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Proceedings Article | 4 March 2019 Paper

Paper

Low-loss coupling interfaces between InP-based emitters and Si3N4 photonic integrated circuits

D. Chatzitheocharis, D. Ketzaki, G. Dabos, K. Vyrsokinos

Proceedings Volume 10923, 109231J (2019) https://doi.org/10.1117/12.2508517

KEYWORDS: Waveguides, Interfaces, Photonic integrated circuits, Silicon photonics, Light, Evanescent wave coupling, Electromagnetic coupling, Integrated optics, Quantum dot lasers

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Proceedings Article | 7 June 2018 Paper

Paper

Co-integrating plasmonics with Si3N4 photonics towards a generic CMOS compatible PIC platform for high-sensitivity multi-channel biosensors: the H2020 PlasmoFab approach (Conference Presentation) (Withdrawal Notice)

Dimitris Tsiokos, George Dabos, Dimitra Ketzaki, Jean-Claude Weeber, Laurent Markey, Alain Dereux, Anna Lena Giesecke, Caroline Porschatis, Bartos Chmielak, Thorsten Wahlbrink, Karl Rochracher, Nikos Pleros

Proceedings Volume 10249, 1024902 (2018) https://doi.org/10.1117/12.2268881

KEYWORDS: Plasmonics, Photonic integrated circuits, Waveguides, Photonics, Biosensors, Electronics, Metals, Gold, Silicon photonics, Diffraction

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Proceedings Article | 23 February 2018 Presentation + Paper

Presentation + Paper

Efficient coupling between Si3N4 photonic and hybrid slot-based CMOS plasmonic waveguide

E. Chatzianagnostou, D. Ketzaki, A. Manolis, G. Dabos, N. Pleros, L. Markey, J.-C. Weeber, A. Dereux, A. L. Giesecke, C. Porschatis, D. Tsiokos

Proceedings Volume 10535, 105351H (2018) https://doi.org/10.1117/12.2289565

KEYWORDS: Plasmonics, Waveguides, Metals, Aluminum, Copper, Plasmonic waveguides, 3D modeling, Finite-difference time-domain method, Light wave propagation

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Proceedings Article | 23 February 2018 Presentation + Paper

Presentation + Paper

CMOS plasmonic waveguides co-integrated with LPCVD-based Si3N4 via a butt-coupled interface

A. Manolis, G. Dabos, D. Ketzaki, E. Chatzianagnostou, S. Papaioannou, D. Tsiokos, L. Markey, J.-C. Weeber, A. Dereux, A. L. Giesecke, C. Porschatis, N. Pleros

Proceedings Volume 10535, 105351J (2018) https://doi.org/10.1117/12.2289952

KEYWORDS: Waveguides, Plasmonics, Aluminum, Copper, Interfaces, Silicon, Plasmonic waveguides, Metals, Photonic integrated circuits, Thin films

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Proceedings Article | 20 February 2017 Presentation + Paper

Presentation + Paper

Thick-SOI Echelle grating for any-to-any wavelength routing interconnection in multi-socket computing environments

G. Dabos, S. Pitris, C. Mitsolidou, T. Alexoudi, D. Fitsios, M. Cherchi, M. Harjanne, T. Aalto, G. Kanellos, N. Pleros

Proceedings Volume 10109, 1010914 (2017) https://doi.org/10.1117/12.2250772

KEYWORDS: Wavelength division multiplexing, Transceivers, Data centers, Coarse wavelength division multiplexing, Silicon photonics, Switches, Data communications, Buildings, Multiplexing, Waveguides, Silicon, Etching, Optical design, Semiconducting wafers, Oxides, Photomasks, Aluminum

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Proceedings Article | 17 February 2017 Presentation + Paper

Presentation + Paper

Butt-coupled interface between stoichiometric Si3N4 and thin-film plasmonic waveguides

G. Dabos, D. Ketzaki, D. Tsiokos, N. Pleros

Proceedings Volume 10106, 1010616 (2017) https://doi.org/10.1117/12.2252254

KEYWORDS: Plasmonics, Interfaces, Thin films, Photonics, Plasmonic waveguides, Waveguides, Silicon, Photonic integrated circuits, Plasmonic couplers, Silicon photonics, Gold, 3D modeling, Finite-difference time-domain method

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Proceedings Article | 17 February 2017 Paper

Paper

A directional coupling scheme for efficient coupling between Si3N4 photonic and hybrid slot-based plasmonic waveguides

D. Ketzaki, G. Dabos, J. C. Weeber, A. Dereux, D. Tsiokos, N. Pleros

Proceedings Volume 10106, 1010615 (2017) https://doi.org/10.1117/12.2252193

KEYWORDS: Plasmonics, Waveguides, Plasmonic waveguides, Silicon photonics, Plasmonic couplers, Silicon, Light-matter interactions, Data communications, Absorption, Light wave propagation, 3D modeling, Gold, Finite-difference time-domain method, Wave propagation

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Proceedings Article | 14 March 2016 Paper

Paper

Ultra-low loss fully-etched grating couplers for perfectly vertical coupling compatible with DUV lithography tools

G. Dabos, N. Pleros, D. Tsiokos

Proceedings Volume 9752, 975212 (2016) https://doi.org/10.1117/12.2211374

KEYWORDS: Silicon, Deep ultraviolet, Lithography, Semiconductor lasers, Hybrid silicon lasers, Vertical cavity surface emitting lasers, Polarization, Modulation, Laser sources, Photonic integrated circuits, Back end of line, Dielectric polarization, Tolerancing, Oxides

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Proceedings Article | 27 February 2015 Paper

Paper

Low back-reflection CMOS-compatible grating coupler for perfectly vertical coupling

G. Dabos, Nikos Pleros, D. Tsiokos

Proceedings Volume 9367, 936711 (2015) https://doi.org/10.1117/12.2077960

KEYWORDS: Waveguides, Polarization, Silicon, Particle swarm optimization, Etching, Silicon photonics, Monte Carlo methods, Tolerancing, Interfaces, Single mode fibers

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Proceedings Article | 8 March 2014 Paper

Paper

Fabrication of modulators and 2x2 switches in SOI based on the carrier depletion mechanism for optical interconnects

Francisco Lopez-Royo, Antoine Brimont, Christos Vagionas, George Dabos, Nikos Pleros, Konstantinos Vyrsokinos, Amadeu Griol, Juan Hurtado, Laurent Bellieres, Nuria Losilla, Pablo Sanchis, Luis Sanchez, Javier Marti

Proceedings Volume 8991, 899112 (2014) https://doi.org/10.1117/12.2044245

KEYWORDS: Switching, Resonators, Waveguides, Modulators, Wave propagation, Silicon, Switches, Optical interconnects, Electro optics, Diodes

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Proceedings Article | 8 March 2014 Paper

Paper

Cost-effective single-etched TM-mode SOI grating couplers for broadband perfectly vertical coupling

G. Dabos, D. Kalavrouziotis, J. Bolten, A. Prinzen, N. Pleros, D. Tsiokos

Proceedings Volume 8990, 899009 (2014) https://doi.org/10.1117/12.2039568

KEYWORDS: Optical design, Waveguides, Etching, Silicon, Photonic integrated circuits, Oxides, Polarization, Tolerancing, Silicon photonics, L band

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Showing 5 of 18 publications

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