Optimum photoluminescence excitation and recharging cycle of single nitrogen-vacancy centers in ultrapure diamond
Date
2012
Authors
Beha, K
Batalov, A
Manson, Neil
Bratschitsch, R
Leitenstorfer, A
Journal Title
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Volume Title
Publisher
American Physical Society
Abstract
Important features in the spectral and temporal photoluminescence excitation of single nitrogen-vacancy (NV) centers in diamond are reported at conditions relevant for quantum applications. Bidirectional switching occurs between the neutral (NV0) and negatively charged (NV -) states. Luminescence of NV - is most efficiently triggered at a wavelength of 575nm which ensures optimum excitation and recharging of NV0. The dark state of NV - is identified as NV0. A narrow resonance is observed in the excitation spectra at 521nm, which mediates efficient conversion to NV0.
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Keywords
Keywords: Dark state; Excitation spectrum; Narrow resonances; Nitrogen-vacancy center; Photo-luminescence excitation; Quantum applications; Atomic physics; Physics
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Source
Physical Review Letters
Type
Journal article
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Open Access
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Restricted until
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