Peculiarities of Absorption and Luminescence Spectra of Nitrogen-Vacancy Color Centers in Diamond Crystals

摘要

We have studied photoluminescence spectra of nitrogen-vacancy (NV) centers upon their pumping by short-wavelength visible and near-UV radiation. We have shown that NV~0 centers, as distinct from NV~- centers have an absorption line in the UV range. Inversion of the zero-phonon line of NV~- centers has been shown and interpreted.