Photodynamics and quantum efficiency of germanium vacancy color centers in diamond
Nguyen M, Nikolay N, Bradac C, Kianinia M, Ekimov EA, Mendelson N, Benson O, Aharonovich I (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 1
Article Number: 066002
Journal Issue: 6
Abstract
Color centers in diamond-especially group IV defects-have been advanced as a viable solid-state platform for quantum photonics and information technologies. We investigate the photodynamics and characteristics of germanium-vacancy (GeV) centers hosted in high-pressure high-temperature diamond nanocrystals. Through back-focal plane imaging, we analyze the far-field radiation pattern of the investigated emitters and derive a crossed-dipole emission, which is strongly aligned along one axis. We use this information in combination with lifetime measurements to extract the decay rate statistics of the GeV emitters and determine their quantum efficiency, which we estimated to be ∼ (22 ± 2) %. Our results offer further insight into the photodynamic properties of the GeV center in nanodiamonds and confirm its suitability as a desirable system for quantum technologies.
Involved external institutions
University of Technology Sydney (UTS)
Australia (AU)
Humboldt-Universität zu Berlin
Germany (DE)
Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS)
Russian Federation (RU)
Australia (AU)
Humboldt-Universität zu Berlin
Germany (DE)
Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS)
Russian Federation (RU)
How to cite
APA:
Nguyen, M., Nikolay, N., Bradac, C., Kianinia, M., Ekimov, E.A., Mendelson, N.,... Aharonovich, I. (2019). Photodynamics and quantum efficiency of germanium vacancy color centers in diamond. Advanced Photonics, 1(6). https://doi.org/10.1117/1.AP.1.6.066002
MLA:
Nguyen, Minh, et al. "Photodynamics and quantum efficiency of germanium vacancy color centers in diamond." Advanced Photonics 1.6 (2019).
BibTeX: Download