This project will further develop the protocols and instrumentation required for measurements at the single-photon level, including sub-shot noise measurements, quantum imaging, sub-diffraction imaging, and quantum illumination. In addition, novel methods for the fabrication of single-photon sources will be developed and optimized for such things as purity and brightness.
The goal of this project is to establish a metrology infrastructure for the calibration of single-photon sources and detectors. For this, the consortium will develop new single-photon sources and entangled-photon sources for traceable measurements and specify their performance parameters. New validation methods will be produced to optimize sources for highest purity (g(2)(t = 0) close to 0), brightness (photon rate > 5 × 106 photons per second) and indistinguishability (Hong-Ou-Mandel visibility > 95 %). An infrastructure used in European metrology infrastructure for single-photon measurements will be developed for the traceable characterization of entangled-photon and single-photon sources, amplifiers, and standardized quantum-optical setups.
Within this project, MRI of Aalto University will utilize existing PQED in a cryostat for calibrations of single-photon detectors with photon flux down to 1 million photons per second.
contact person: Farshid Manoocheri