Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 40: Poster: Quantum Optics and Photonics II

Q 40.51: Poster

Wednesday, March 8, 2017, 17:00–19:00, P OG2

Single photon emission from point defects in hexagonal boron nitride flakes — •Bernd Sontheimer¹, Merle Braun¹, Nikola Sadzak¹, Igor Aharonovich², and Oliver Benson¹ — ¹Humboldt-Universität zu Belrin — ²University of Technology Sydney

Single photon emitters play an important role in a variety of quantum technologies, including quantum communications and computing. Here, we introduce Hexagonal boron nitride (hBN), an emerging twodimensional wide-bandgap material, as a host for a multitude of point defects. We investigate those defects and find stable ones at room temperature that show extraordinary bright single photon emission at various wavelengths in the visible and near infrared. Furthermore, present our latest measurements on the temperature dependence of the spectral properties of those defects and show and analyze the apparent spectral diffusion at different time scales as well as optical coherence properties at cryogenic temperatures.