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17 March 2023 Excited state spectroscopy and coherence protection of spin defects in hexagonal boron nitride
Charlie Patrickson, Andrew J. Ramsay, Simon Baber, David R. M. Arvidsson Shukur, Reza Hekmati, Anthony J. Bennett, Isaac J. Luxmoore
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Proceedings Volume PC12423, 2D Photonic Materials and Devices VI; (2023) https://doi.org/10.1117/12.2650237
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
Spin defects in foils of hexagonal boron nitride have potential in quantum sensing applications. In this contribution we discuss recent optically detected magnetic resonance experiments with ensembles of negatively charged boron vacancies. Time resolved detection is used to determine the spin-dependent intersystem crossing rates and to measure the zero-field splitting of the optically excited state. Furthermore, a continuous dynamic decoupling protocol is used to stabilize Rabi-oscillations of the ground state spin, extending the coherence time up to 4 µs, an improvement of ~150 times.
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Charlie Patrickson, Andrew J. Ramsay, Simon Baber, David R. M. Arvidsson Shukur, Reza Hekmati, Anthony J. Bennett, and Isaac J. Luxmoore "Excited state spectroscopy and coherence protection of spin defects in hexagonal boron nitride", Proc. SPIE PC12423, 2D Photonic Materials and Devices VI, (17 March 2023); https://doi.org/10.1117/12.2650237
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KEYWORDS
Boron
Spectroscopy
Quantum communications
Microfabrication
Microwave radiation
Modulation
Optical properties
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