Erlangen 2018 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 40: Poster: Quantum Optics and Photonics III

Q 40.21: Poster

Tuesday, March 6, 2018, 16:15–18:15, Zelt West

Surface treatment of hBN towards stable spectral lines — •Michael Koch, Andreas Dietrich, Richard Waltrich, Lukas Hartung, Stefan Häußler, Fedor Jelezko, and Alexander Kubanek — Institute for Quantum Optics, Ulm University, D-89081 Ulm, Germany

Due to its promising spectral properties [1, 2], hBN is a bright candidate for quantum optical applications like quantum repeaters. Spectral stability is a crucial property for single photon emitters and therefore spectral diffusion is a limiting factor especially for hBN. We present techniques to improve the spectral properties of defect centers in hBN by different surface treatment and annealing methods. We gain in-depth insight into the underlying physical processes leading to spectral instability.

[1] Tran, Toan Trong, et al. "Quantum emission from hexagonal boron nitride monolayers." Nature nanotechnology 11.1 (2016):37-41.

[2] Tran, Toan Trong, et al. "Resonant excitation of quantum emitters in hexagonal born nitride." ACS Photonics (2017).