A germanium-vacancy center in diamond as single-photon source for radiometric application
Year: 2024
Type: conference-paper
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.
Authors: J. Christinck, F. Hirt, H. Hofer, H. Georgieva, Z. Liu, M. Etzkorn, T. Dunatov, M. Jakšić, J. Forneris, S. Kück
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403764130