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Manifestation in IR-Luminescence of Cross Relaxation Processes between NV-Centers in Weak Magnetic Fields.

Authors :
Filimonenko, D. S.
Yasinskii, V. M.
Nizovtsev, A. P.
Kilin, S. Ya.
Jelezko, F.
Source :
Journal of Applied Spectroscopy. Jan2022, Vol. 88 Issue 6, p1131-1143. 13p.
Publication Year :
2022

Abstract

The effect of a magnetic field on the luminescence from an ensemble of NV-centers in diamond was studied experimentally and theoretically. It was found that the intensity of infrared luminescence associated with transitions between singlet levels of NV-centers showed a pronounced increase in a near-zero magnetic field. The influence of the power and polarization of the laser radiation on the amplitude and shape of the revealed local maximum in the IR-luminescence of NV-centers was investigated. An eight-level photophysical model of an NV-center in the presence of an arbitrarily directed magnetic field was constructed and used as a basis to calculate the intensity of the luminescence emitted by an ensemble of NV-centers in both the visible and infrared spectral regions. It was shown that a phenomenological allowance for cross relaxation of NV-centers between each other and with other diamond paramagnetic centers within the framework of this model allows the experimentally observed fluorescence features of an ensemble of NV-centers in the presence of weak magnetic fields to be described. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00219037
Volume :
88
Issue :
6
Database :
Academic Search Index
Journal :
Journal of Applied Spectroscopy
Publication Type :
Academic Journal
Accession number :
154738763
Full Text :
https://doi.org/10.1007/s10812-022-01290-z