Hidden Silicon-Vacancy Centers in Diamond

Autor: Christopher L. Smallwood, Tim Schröder, Edward S. Bielejec, Ronald Ulbricht, Steven T. Cundiff, Mark E. Siemens, Geoffrey Diederich, Kelsey M. Bates, Matthew W. Day, Travis M. Autry
Rok vydání: 2020
Předmět:
DOI: 10.48550/arxiv.2006.02323
Popis: 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 extended electronic ${T}_{2}$ times. The phenomenon is likely caused by strain, indicating a potential mechanism for controlling electric coherence in color-center-based quantum devices.
Databáze: OpenAIRE