TU Berlin

Workgroup Prof. Dr. M. KneisslNanophotonic devices

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Nanophotonic devices


The nanophotonic device research area focusses on the development of new device concepts for optoelectronics and sensors. We are especially interested in the development of:

  • UV light emitting diodes (LEDs) and lasers in the far ultraviolet region. The aim is to realize high-efficiency UV LEDs and laser diodes in the ultraviolet spectral region. These devices can be used, e.g. for the purification of drinking water,for medical diagnostics (e.g., blood gas analysis) and for phototherapy. In cooperation with the Ferdinand-Braun-Institut, we are also developing UV LED modules, e.g .for applications in flow cytometry (together with project partner Charite) and for plant growth lighting.
  • Green laser diodes and LEDs on nonpolar and semipolar GaN substrates for use in projection displays and biotechnology (e.g., DNA sequencing).
  • Longitudinal single-mode distributed feedback (DFB) laser diodes for spectroscopy metrology, and the use of digital holographic data storage.
  • Optical microcavities for single photon emitters (SPE) for applications in quantum cryptography. Surface emitting lasers (VCSELs) and disc lasers (SCDL) in the blue-violet spectral range. Possible applications include the short-range data communication and displays.


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