Extinction of light and coherent scattering by a single nitrogen-vacancy center in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-05-10 |
| Journal | Physical review. A/Physical review, A |
| Authors | Thai Hien Tran, Petr Siyushev, Jƶrg Wrachtrup, Ilja Gerhardt |
| Institutions | University of Stuttgart, Center for Integrated Quantum Science and Technology |
| Citations | 5 |
Abstract
Section titled āAbstractāCoherently scattered light from a single quantum system promises to get a\nvaluable quantum resource. In this letter an external laser field is\nefficiently coupled to a single nitrogen vacancy (NV-)center in diamond. By\nthis it is possible to detect a direct extinction signal and estimate the NVās\nextinction cross-section. The exact amount of coherent and incoherent photons\nis determined against the saturation parameter, and reveals the optimal point\nof generating coherently scattered photons and an optimal point of excitation.\nA theoretical model of spectral diffusion allows to explain the deviation to an\natom in free-space. The introduced experimental techniques are used to\ndetermine the properties of the tight focusing in an interference experiment,\nand allow for a direct determination of the Gouy-phase in a strongly focused\nbeam.\n