Optimum photoluminescence excitation and recharging cycle of single nitrogen-vacancy centers in ultrapure diamond

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 (NV(0)) and negatively charged (NV(-)) states. Luminescence...

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Bibliographic Details
Published in:Physical review letters 2012-08, Vol.109 (9), p.097404-097404, Article 097404
Main Authors: Beha, K, Batalov, A, Manson, N B, Bratschitsch, R, Leitenstorfer, A
Format: Article
Language:English
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Summary: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 (NV(0)) and negatively charged (NV(-)) states. Luminescence of NV(-) is most efficiently triggered at a wavelength of 575 nm which ensures optimum excitation and recharging of NV(0). The dark state of NV(-) is identified as NV(0). A narrow resonance is observed in the excitation spectra at 521 nm, which mediates efficient conversion to NV(0).
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.109.097404