Short Description
The single-photon detection system consists of a “Single Quantum Eos 800 CS” closed-cycle cryostat with a water-cooled helium compressor and "Atlas" driver electronics. It is equipped with single-photon detectors for the telecom O-band around 1310 nm and the C-band around 1550 nm. The detectors are based on superconducting nanowires (SNSPDs) and are further optimized for a low dark count rate. The system is vibration-damped and supplemented by a turbopump station as well as “Time Tagger Ultra” correlation electronics from “Swabian Instruments.” It enables the acquisition of time-resolved and -correlated photon statistics and is connected via fiber optics to corresponding luminescence (spectroscopy) setups. In conjunction, the single-photon detection system is primarily used to characterize the properties of quantum light sources emitting in the telecommunications wavelength range based on Group IV semiconductors.
Contact Person
Assoc. Univ.-Prof. Dr. Moritz Brehm
Research Services
Scientific collaboration in the development, characterization and optimization of quantum light sources based on Group IV semiconductors.
Methods & Expertise for Research Infrastructure
Development, characterization and optimization of quantum light sources based on Group IV semiconductors.
FFG “Quantum Austria” R&D infrastructure project “Hubs for advanced solid-state quantum information devices” (2022-2025, https://projekte.ffg.at/projekt/4524713)
Research:
FWF Cluster of Excellence "Quantum Science Austria" (quantA) Discovery Project "Deterministic integration of silicon color centers as scalable key resources for telecom quantum networks" (2025-2027, https://www.quantumscience.at/projects/discovery-projects)