The Institute for semiconductor technology focuses on basic and applied research in the fields of optoelectronics based on III-V semiconductors, nanophotonics, and quantum technologies. The institute is member of the cluster of excellence QuantumFrontiers and the Quantum Valley Lower Saxony where photonic technologies for next generation of quantum precision experiments, such as atom chips, ultra-stable laser cavities, and quantum computers are developed. The possibility of doing a PhD is possible within the division Optical Quantum Metrology.
The Institute for Semiconductor Technology (IHT) seeks to fill a position for a
Doctoral Researcher (m/f/d)
in the research topic
High-Efficiency Nanophotonic Systems for Quantum Precision Experiments
We offer a limited part-time doctoral position (EG 13 TV-L, 75%, 30 hours/week), (initially) limited for two years, with the possibility of an extension if appropriate.
Research topic Nanophotonics systems such as photonic integrated circuits and metasurfaces provide a fascinating platform to enable quantum precision experiments. For the experimental realization, typically dielectric materials such as silicon, silicon nitride, or III-V semiconductors are utilized. Optical losses in these systems set a crucial limitation on their applicability in optical quantum technologies. On the one hand, losses lead to decoherence. On the other hand, they set critical boundaries to optical parameters like the reflectivity of cavity meta-mirrors. With these devices, recently, a finesse of >11.000 has been demonstrated. To enable an application in ultra-stable laser cavities, we want to push the finesse towards 100.000. Aim of this project will be the quantification of optical losses, e.g. roughness induced scattering, in photonic systems arising in the fabrication process. This covers numerical simulations as well as optical experiments and the development of strategies to mitigate these losses. The project will thus help elevate photonic elements' performance to the next level.
Applications from people of all nationalities are welcome. The TU Braunschweig promotes professional gender equality. We particularly encourage female scientists to apply for the advertised position. Application costs cannot be reimbursed. Personal data will be stored for the purpose of the application process. Severely disabled applicants will be given preferential consideration in case of equal suitability. A proof is to be enclosed.
Applications (incl. curriculum vitae) should be sent by mail to Prof. Dr. Stefanie Kroker by 17.11. 2022.
Contact Prof. Dr. Stefanie Kroker Technische Universität, Institut für Halbleitertechnik, Hans-Sommer-Str. 66, 38106 Braunschweig. E-Mail: firstname.lastname@example.org , Phone: (0) 531-391 65350
from: 03.11.2022 valid until: 17.11.2022
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Kristina Rottig/TU Braunschweig