Optical properties of a single-colour centre in diamond with a green zero-phonon line

Optical properties of a single-colour centre in diamond with a green zero-phonon line

We report the photoluminescence characteristics of a colour centre in diamond grown by plasma-assisted chemical vapour deposition. The colour centre emits with a sharp zero-phonon line at 2.330 eV (λ = 532 nm) and a lifetime of 3.3 ns, thus offering potential for a high-speed singlephoton source wit...

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Príomhchruthaitheoirí: Smith, J, Grazioso, F, Patton, B, Dolan, P, Markham, M, Twitchen, D
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: IOP Publishing 2011
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Achoimre:We report the photoluminescence characteristics of a colour centre in diamond grown by plasma-assisted chemical vapour deposition. The colour centre emits with a sharp zero-phonon line at 2.330 eV (λ = 532 nm) and a lifetime of 3.3 ns, thus offering potential for a high-speed singlephoton source with green emission. It displays a vibronic emission spectrum with a Huang-Rhys parameter of 2.48 at 77K. Hanbury-Brown and Twiss measurements reveal that the electronic level structure of the defect includes a metastable state that can be populated from the optically excited state. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

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