Detection of nanowatt microwave radiation by the photoluminescence of an ensemble of negatively charged nitrogen vacancies in diamond

0522374 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Debus, J. - Ivanov, V.Yu. - Braukmann, D. - Azamat, Dmitry - Glaser, E.R. - Kennedy, T.A. - Yakovlev, D.R. - Bayer, M.
Detection of nanowatt microwave radiation by the photoluminescence of an ensemble of negatively charged nitrogen vacancies in diamond.
Applied Physics Letters. Roč. 113, č. 19 (2018), s. 1-1, č. článku 192406. ISSN 0003-6951. E-ISSN 1077-3118
Institucionální podpora: RVO:68378271
Klíčová slova: microwave radiation * photoluminescence * nitrogen vacancies * diamond
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.521, rok: 2018
Způsob publikování: Omezený přístup
https://doi.org/10.1063/1.5053639

We report on detecting continuous 60-GHz microwave radiation with powers in the nanowatt range by the photoluminescence of an ensemble of negatively charged nitrogen vacancy (NV-) centers in diamond at room temperature. The high contrast of the optically detected magnetic resonance and the efficient photon collection yield a magnetic field sensitivity of 86 nT/√ Hz for continuous-wave laser excitation with a photon energy of 2.33 eV and a power density of 93 W/cm2. The efficiency of the microwave-power-to-magnetic-field conversion amounts to 0.54mT/√ W . The microwave excitation also enhances the degree of the linear polarization of NV- photoluminescence at magnetic resonance conditions, and for linearly co-polarized NV- photoluminescence and laser light, the magnetic field sensitivity is improved by about 7%.
Trvalý link: http://hdl.handle.net/11104/0306881