Hidden Silicon-Vacancy Centers in Diamond
Hidden Silicon-Vacancy Centers in Diamond
We characterize a high-density sample of negatively charged silicon-vacancy (${\mathrm{SiV}}^{\ensuremath{-}}$) centers in diamond using collinear optical multidimensional coherent spectroscopy. By comparing the results of complementary signal detection schemes, we identify a hidden population of ${\mathrm{SiV}}^{\ensuremath{-}}$ centers that is not typically observed in photoluminescence and which exhibits significant spectral inhomogeneity and …