Photonics Group

Photonics Group is constituted by a few the talented people, who deal with the computer simulation and modeling physical phenomena in photonic structures. Our interest is focused on the semiconductor devices
- edge-emitting laser diodes,
- surface-emitting laser diodes,
- laser matrices,
- resonant cavity photodetectors.
Our computer models cover complexity of
- optical phenomena,
- electical phenomena,
- thermal phenomena,
- gain,
- oxidation kinetics,
- mechanical stress
in the lasers emitting in a visible spectrum of wavelength, as well as in infrared or ultraviolet ranges.
In particular, we deal with:
- 3D computer simulation of edge-emitting and vertical-cavity laser diodes and LEDs of different types taking into account mutual interactions between thermal, electrical and optical phenomena, gain and mechanical stress,
- investigation of heat-generation processes and heat flow in vertical-cavity and edge-emitting laser diodes and LEDs of different types,
- investigation of thermal, electrical and optical, mechanical and gain interactions between elements of 1D and 2D diode laser arrays,
- analysis of gradual and catastrophic degradation processes in laser diodes; analysis of physical mechanisms of degradation,
- theoretical analysis of thermal conductivity of ternary and quaternary AIIIBV compound semiconductors,
- efficiency optimisation of lasers and high power laser arrays designs,
- modeling of oxidation kinetics AlAs layers during manufacturing of laser and LED devices,
- analysis of electromagnetic field in photonic band bap materials and its application to the light-emitting devices.
Group Leader
Group Projects
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Miniaturized Board-mountable Optical Transceiver for high data rate Military Satellite Communications
Horyzont Europa
Recent Publications
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N. Heermeier, M. Janczak, M. Gębski, M. Marciniak, J. A. Lott, T. Czyszanowski, S. Reitzenstein, Polarization‐Stable Wavelength‐Tunable Single‐Mode Vertical‐Cavity Surface‐Emitting Lasers with a Monolithic High‐Refractive‐Index‐Contrast Grating Top Coupling Mirror, Laser and Photonics Reviews, 2025
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R. Sarzała, D. Dąbrówka, M. Dems, Thermal Optimization of Edge-Emitting Lasers Arrays, Materials 18(1), 107, 2024
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M. Ekielski, W. Głowadzka, K. Bogdanowicz, M. Rygała, M. Mikulicz, P. Śpiewak, M. Kowalski, M. Gębski, M. Motyka, A. Szerling, T. Czyszanowski, Monolithic High Contrast Grating Integrated with Metal: Infrared Electrode with Exceptionally High Conductivity and Transmission, Adv. Funct. Mater., 2312392, 2024
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M. Kędziora, A. Opala, R. Mastria, L. D. Marco, M. Król, K. Łempicka-Mirek, K. Tyszka, M. Ekielski, M. Guziewicz, K. Bogdanowicz, A. Szerling, H. Sigurðsson, T. Czyszanowski, J. Szczytko, M. Matuszewski, D. Sanvitto, B. Piętka, Predesigned perovskite crystal waveguides for room-temperature exciton–polariton condensation and edge lasing, Nat. Mater. 23(11), 1515-1522, 2024
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M. Pieczarka, M. Gębski, A. Piasecka, J. A. Lott, A. Pelster, M. Wasiak, T. Czyszanowski, Bose–Einstein condensation of photons in a vertical-cavity surface-emitting laser, Nat. Photonics, 2024