Prof. Dr. Bernd Witzigmann

Chair of Optoelectronics

Professors

Address

Konrad-Zuse-Straße 3-591052 Erlangen

Room: 01.045, Floor: 01

Contact

Email: bernd.witzigmann@fau.de
Phone: +49 9131 85 – 28952

Posts

Publications

Alhussien Ali Marouf I., Römer F., Schilling M., Biebler F., Höpfner J., Grigoletto M., Wernicke T., Kneissl M., Witzigmann B.:
Analysis of effective carrier mobility in the multi-quantum wells of DUV AlGaN LEDs by carrier transport simulations
OPTO (San Francisco, 25. January 2025 – 31. January 2025)
In: Proceedings Volume PC13360, Physics and Simulation of Optoelectronic Devices XXXIII 2025
DOI: 10.1117/12.3042015
Utsch B., Römer F., Faber S., Bertram F., Schmidt G., Veit P., Berger C., Dadgar A., Strittmatter A., Christen J., Witzigmann B.:
Modelling Electron Beam Induced Current in III-Nitride Light Emitting Diodes
2025 International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2025 (Lodz, POL, 14. September 2025 – 18. September 2025)
In: Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2025
DOI: 10.1109/NUSOD64393.2025.11199473

Cardinali G., Kölle S., Schulz A., Susilo N., Hauer Vidal D., Guttmann M., Blonski MA., Römer F., Witzigmann B., Nippert F., Wagner MR., Wernicke T., Kneissl M.:
Gain Characteristics of Optically Pumped UVC Lasers with Wide AlGaN Single-Quantum-Well Active Regions
In: physica status solidi (a) (2024)
ISSN: 1862-6300
DOI: 10.1002/pssa.202400067
Faber S., Römer F., Witzigmann B.:
Simulation Study of Aluminum Nitride TrenchFETs with Polarization-Induced Doping
In: physica status solidi (a) (2024)
ISSN: 1862-6300
DOI: 10.1002/pssa.202400045
Hofmann G., Muhin A., Susilo N., Römer F., Wernicke T., Kneissl M., Witzigmann B.:
Simulation of Carrier Injection Efficiency in AlGaN-based UV-light-emitting Diodes
In: IEEE Photonics Journal (2024), p. 1-8
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2024.3430488
Hopfner J., Kuhl F., Schilling M., Muhin A., Guttmann M., Hofmann G., Römer F., Wernicke T., Witzigmann B., Kneissl M.:
Unraveling carrier distribution in far-UVC LEDs by temperature-dependent electroluminescence measurements
In: Applied Physics Letters 125 (2024), Article No.: 071109
ISSN: 0003-6951
DOI: 10.1063/5.0223284
Jeddi H., Adham K., Zhao Y., Witzigmann B., Römer F., Bermeo M., Borgström MT., Pettersson H.:
Enhanced LWIR response of InP/InAsP quantum discs-in-nanowire array photodetectors by photogating and ultra-thin ITO contacts
In: Nanotechnology 35 (2024), Article No.: 215206
ISSN: 0957-4484
DOI: 10.1088/1361-6528/ad2bd0
Kunne M., Kusserow T., Witzigmann B., Hillmer H.:
Modifying the Complex Refractive Index of Thin-Films for Nanooptical Applications
2024 International Conference on Optical MEMS and Nanophotonics, OMN 2024 (San Sebastian, 28. July 2024 – 1. August 2024)
In: 2024 International Conference on Optical MEMS and Nanophotonics (OMN) 2024
DOI: 10.1109/OMN61224.2024.10685281
Kölle S., Römer F., Cardinali G., Schulz A., Susilo N., Hauer Vidal D., Wernicke T., Kneissl M., Witzigmann B.:
Optical Gain in AlGaN Quantum Wells: Impact of Higher Energy States
In: IEEE Photonics Journal 16 (2024), p. 1-5
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2024.3379231
Römer F., Hofmann G., Hoopfner J., Schilling M., Muhin A., Wernicke T., Kneissl M., Witzigmann B.:
Carrier Transport in a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode
In: IEEE Photonics Journal (2024), p. 1-6
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2024.3351965

Jeddi H., Witzigmann B., Adham K., Hrachowina L., Borgstrom MT., Pettersson H.:
Spectrally Tunable Broadband Gate-All-Around InAsP/InP Quantum Discs-in-Nanowire Array Phototransistors with a High Gain-Bandwidth Product
In: ACS Photonics (2023)
ISSN: 2330-4022
DOI: 10.1021/acsphotonics.2c02024
Kolle S., Römer F., Cardinali G., Schultz A., Susilo N., Vidal DH., Wernicke T., Kneissl M., Witzigmann B.:
Simulation of optical gain in AlGaN quantum wells
23rd International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023 (Turin, 18. September 2023 – 21. September 2023)
In: Paolo Bardella, Alberto Tibaldi (ed.): Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023
DOI: 10.1109/NUSOD59562.2023.10273539
Römer F., Hofmann G., Höpfner J., Schilling M., Muhin A., Wernicke T., Kneissl M., Witzigmann B.:
Effect of the Hole Mobility on the Emission Spectrum of a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode
23rd International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023 (Turin, ITA, 18. September 2023 – 21. September 2023)
In: Paolo Bardella, Alberto Tibaldi (ed.): Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023
DOI: 10.1109/NUSOD59562.2023.10273498
Witzigmann B., Römer F.:
Polarization induced doping for carrier transport in graded III-nitride layers: a simulation study
Physics and Simulation of Optoelectronic Devices XXXI 2023 (San Francisco, CA, USA, 31. January 2023 – 2. February 2023)
In: Bernd Witzigmann, Marek Osinski, Yasuhiko Arakawa (ed.): Proceedings of SPIE – The International Society for Optical Engineering 2023
DOI: 10.1117/12.2652797

Chavarin CA., Hardt E., Skibitzki O., Voss T., Eissa M., Spirito D., Capellini G., Baldassarre L., Flesch J., Piehler J., You C., Gruessing S., Römer F., Witzigmann B.:
Terahertz subwavelength sensing with bio-functionalized germanium fano-resonators
In: Frequenz (2022)
ISSN: 0016-1136
DOI: 10.1515/freq-2022-0078
Hardt E., Chavarin CA., Gruessing S., Flesch J., Skibitzki O., Spirito D., Vita GM., Simone GD., Masi AD., You C., Witzigmann B., Piehler J., Capellini G.:
Quantitative protein sensing with germanium THz-antennas manufactured using CMOS processes
In: Optics Express 30 (2022), p. 40265-40276
ISSN: 1094-4087
DOI: 10.1364/OE.469496
Hofmann G., Höpfner J., Schilling M., Muhin A., Romer F., Wernicke T., Kneissl M., Witzigmann B.:
Carrier Transport in Multi Colour Deep Ultraviolet Light Emitting Diodes
2022 International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2022 (Turin, 12. September 2022 – 16. September 2022)
In: Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2022
DOI: 10.1109/NUSOD54938.2022.9894749

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