Welcome to our group website!
Open positions: We currently offer several Bachelor's and Master's thesis projects. If you are interested, drop us a line and come along for a lab tour!
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Applications for SQL24 are open! The "Sensing with Quantum Light" workshop will go into the next round from 27-31 October 2024. This time with a very special venue: on the river cruise ship MS Swiss Crown from Passau to Vienna and back. Details can be found on the workshop website: https://sql24.hu-berlin.de/. Apply now! |
News:May 09, 2024 Premiere! For our first NiQO retreat, we spent a few days in the beautiful Uckermark, getting a glimpse of the group's current and future projects. Bonfires, stick bread, Settlers (Felipe won, surprisingly beating Marlon), and sauna sessions all added to the great vibes.
April 25, 2024 Marlon has published his paper on "Telecom-Band Spontaneous Parametric Down-Conversion in AlGaAs-on-Insulator Waveguides". Congratulations!
April 18, 2024 A round of mini-golf in beautiful weather with cool drinks – who could say no to that?
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Research:
Mid-IR sensing with undetected photons
Quantum frequency conversion
Integrated photonics |
Newest publications:
- Mann, F., Chrzanowski, H. M., Gewers, F., Placke, M., & Ramelow, S. (2024). Noise analysis of a quasi-phase-matched quantum frequency converter and higher-order counter-propagating SPDC. arXiv preprint arXiv:2407.03845.
- M. Placke, J. Schlegel, F. Mann, P. Della Casa, A. Thies, M. Weyers, G. Tränkle, and S. Ramelow, "Telecom-Band Spontaneous Parametric Down-Conversion in AlGaAs-on-Insulator Waveguides", Laser & Photonics Reviews (2024)
- F. Mann, H. M. Chrzanowski, F. Gewers, M. Placke, and S. Ramelow, "Low-noise quantum frequency conversion in a monolithic cavity with bulk periodically poled potassium titanyl phosphate", Phys. Rev. Appl. 20, 054010 (2023)
- P. Kaufmann, H. M. Chrzanowski, A. Vanselow, and S. Ramelow, "Mid-IR spectroscopy with NIR grating spectrometers", Optics Express, 30(4), 5926-5936 (2022)