Coupling of a single tin-vacancy center to a photonic crystal cavity in diamond

Title

Coupling of a single tin-vacancy center to a photonic crystal cavity in diamond

 Author

Kuruma, Kazuhiro (Harvard University)
Pingault, B.J. (TU Delft QID/Taminiau Lab; Harvard University)
Chia, Cleaven (Harvard University)
Renaud, Dylan (Harvard University)
Hoffmann, Patrick (Friedrich Schiller University Jena)
Iwamoto, Satoshi (University of Tokyo)
Ronning, Carsten (Friedrich Schiller University Jena)
Lončar, Marko (Harvard University)

Date

2021

 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.


 To reference this document use:

http://resolver.tudelft.nl/uuid:342adb3c-44ed-4440-a12b-0c0d0271c022

 DOI

https://doi.org/10.1063/5.0051675

 Embargo date

2022-06-10

 ISSN

0003-6951

 Source

Applied Physics Letters, 118 (23)

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2021 Kazuhiro Kuruma, B.J. Pingault, Cleaven Chia, Dylan Renaud, Patrick Hoffmann, Satoshi Iwamoto, Carsten Ronning, Marko Lončar
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