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 single-photon source with green emission. It displays a vibronic emission spectrum with a Huang–Rhys parameter of 2.48 at 77 K. 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.
- optical properties
- photoluminescence characteristics
- vibronic emission spectrum
- chemical vapour deposition
- vibronic emission spectrums
Smith, J. M., Grazioso, F., Patton, B. R., Dolan, P. R., Markham, M. L., & Twitchen, D. J. (2011). Optical properties of a single-colour centre in diamond with a green zero-phonon line. New Journal of Physics, 13, . https://doi.org/10.1088/1367-2630/13/4/045005