Abstract

We present the metrological characterization of a single-photon source based on a germanium-vacancy center in diamond under a solid immersion lens in a confocal microscope setup at room temperature. It was characterized in terms of the emission’s spectral distribution, single-photon purity, temporal stability and the emitter’s excited state lifetime and saturation behavior. An Allan deviation analysis was performed on the emission of the single-photon source to determine the optimal averaging time of the photon flux. The single-photon source was used for the relative calibration of the detection efficiency of two single-photon avalanche diode detectors. The results were compared with measurements using attenuated laser light for the calibration of the detectors.

Details

Title
A germanium-vacancy center in diamond as single-photon source for radiometric application
Author
Christinck, J 1 ; Hirt, F 1 ; Hofer, H 2 ; Georgieva, H 2 ; Liu, Z 3 ; Etzkorn, M 3 ; Dunatov, T 4 ; Jakšić, M 4 ; Forneris, J 5 ; Kück, S 1 

 Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany; Laboratory for Emerging Nanometrology, Langer Kamp 6a/b, 38106 Braunschweig, Germany 
 Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany 
 Laboratory for Emerging Nanometrology, Langer Kamp 6a/b, 38106 Braunschweig, Germany; Technische Universität Braunschweig , Universitätsplatz 2, 38106 Braunschweig, Germany 
 Ruder Bošković Institute , Bijenička cesta 54, 10000 Zagreb, Croatia 
 Physics Department, University of Torino , Via P. Giuria 1, 10125 Torino, Italy; Istituto Nazionale di Ricerca Metrologica (INRiM) , Strada delle Cacce, 91, 10135 Torino, Italy; Istituto Nazionale di Fisica Nucleare (INFN) , Via P. Giuria 1, 10125 Torino, Italy 
First page
012009
Publication year
2024
Publication date
Oct 2024
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3120910129
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.