Laser spectroscopic characterization of negatively charged nitrogen-vacancy (NV−) centers in diamond | Zendy

Shova D. Subedi | Zendy; Vladimir Fedorov | Zendy; Jeremy Peppers | Zendy; Dmitry Martyshkin | Zendy; Sergey Mirov | Zendy; Linbo Shao | Zendy; Marko Lončar | Zendy

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Laser spectroscopic characterization of negatively charged nitrogen-vacancy (NV⁻) centers in diamond

Author(s) -

Shova D. Subedi,

Vladimir Fedorov,

Jeremy Peppers,

Dmitry Martyshkin,

Sergey Mirov,

Linbo Shao,

Marko Lončar

Publication year - 2019

Publication title -

optical materials express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.925

H-Index - 66

ISSN - 2159-3930

DOI - 10.1364/ome.9.002076

Subject(s) - photoionization , materials science , diamond , atomic physics , spectroscopy , excitation , laser , metastability , vacancy defect , analytical chemistry (journal) , ion , optics , ionization , nuclear magnetic resonance , chemistry , physics , quantum mechanics , composite material , organic chemistry , chromatography

We report on the spectroscopic and laser characterization of negatively charged nitrogen-vacancy (NV−) centers in diamond. Spectroscopic properties such as absorption and emission spectra as well as kinetics were studied, and parameters such as cross-sections and lifetimes were estimated. A vibronic band of NV0 with zero phonon line (ZPL) at 575 nm was detected under 532 nm pulsed excitation due to the photoionization of NV−. Transmission of 532 nm pump pulses saturate around ∼10%, which is much smaller than the theoretical level. Δk/k0 kinetics revealed slow recovery of NV− centers after photoionization under 532 nm pumping, which involved different relaxation channels depending on the probe beam wavelengths. Localization of the electrons in the metastable state of NV0 centers resulted in higher saturated transmission of 632 nm pump.

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