Coupling of a single tin-vacancy center to a photonic crystal cavity in diamond
Abstract
We demonstrate optical coupling between a single tin-vacancy (SnV) center in diamond and a free-standing photonic crystal nanobeam cavity. The cavities are fabricated using quasi-isotropic etching and feature experimentally measured quality factors as high as ∼11 000. We investigate the dependence of a single SnV center's emission by controlling the cavity wavelength using a laser-induced gas desorption technique. Under resonance conditions, we observe an intensity enhancement of the SnV emission by a factor of 12 and a 16-fold reduction of the SnV lifetime. Based on the large enhancement of the SnV emission rate inside the cavity, we estimate the Purcell factor for the SnV zero-phonon line to be 37 and the coupling efficiency of the SnV center to the cavity, the β factor, to be 95%. Our work paves the way for the realization of quantum photonic devices and systems based on efficient photonic interfaces using the SnV color center in diamond.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 07, 2021
- Source ID
- 10.1063/5.0051675
Entities
People
- Benjamin Pingault
- Carsten Ronning
- Cleaven Chia
- Dylan Renaud
- Kazuhiro Kuruma
- Marko Lončar
- Patrick Hoffmann
- Satoshi Iwamoto
Organizations
- Air Force Office of Scientific Research
- Delft University of Technology
- Friedrich Schiller University Jena
- Harvard University
- Office of Naval Research
- United States Department of Energy
- University of Tokyo