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Q: Fachverband Quantenoptik und Photonik
Q 21: Quantum Technologies: Color Centers II (joint session Q/QI)
Q 21.5: Vortrag
Dienstag, 7. März 2023, 12:00–12:15, F442
A novel open microcavity setup for an efficient spin-photon interface with diamond color centers — •Julius Fischer1, Yanik Herrmann1, Julia Brevoord1, Colin Sauerzapf1,2, Leonardo Wienhoven1, Matteo Pasini1, Laurens Feije1, Matthew Weaver1, Maximilian Ruf1, and Ronald Hanson1 — 1QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft 2628 CJ, Netherlands — 23. Physikalisches Institut, University of Stuttgart, 70569 Stuttgart, Germany
Open microcavities are capable of equipping color centers in diamond with an efficient spin-photon interface [1,2] enabling their use as quantum nodes for quantum internet applications [3]. The well-established Nitrogen-Vacancy (NV) center with its long spin coherence times and spin register capabilities as well as the emerging Tin-Vacancy (SnV) center are two promising candidates. We recently showed Purcell enhancement under resonant excitation of NV centers in open microcavities [4]. However, the performance was limited by cavity length variations due to vibrations [4]. Here we present a new cryogenic low-vibration open microcavity setup including first measurements on defect center enriched µm-thin diamond samples.
[1] M. Ruf et al., Journal of Applied Physics 130, 070901 (2021) [2] E. Janitz et al., Optica 7, 1232-1252 (2020) [3] S. Wehner et al., Science 362, 6412 (2018) [4] M. Ruf et al., Phys. Rev. Applied 15, 024049 (2021)