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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A. Janaszek, P. Wróbel, M. Dems, O. Ceylan, Y. Gurbuz, Ł. Kubiszyn, J. Piotrowski, R. Kotyński, Rigorous optical modelling of long-wavelength infrared photodetector with 2D subwavelength hole array in gold film, Opto-Electron. Rev. 32(1), e148831, 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, 2023
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P. Śpiewak, M. Gębski, W. Strupiński, T. Czyszanowski, W. Kołkowski, I. Pasternak, R. Sarzała, W. Nakwaski, M. Wasiak, Determination of electrical and thermal parameters of vertical-cavity surface-emitting lasers, Metrol. Meas. Syst. 30(3), 519-529, 2023
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D. Dąbrówka, Wpływ warstwy ZnO na parametry pracy azotkowych laserów o emisji krawędziowej, Prz. Elektrotechniczn. 1(10), 243-246, 2023
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E. Pruszyńska-Karbownik, D. Jandura, M. Dems, Ł. Zinkiewicz, A. Broda, M. Gębski, J. Muszalski, D. Pudis, J. Suffczyński, T. Czyszanowski, Concept of inverted refractive-index-contrast grating mirror and exemplary fabrication by 3D laser micro-printing, Nanophotonics 12(18), 3579–3588, 2023