Abstract
Efficient measurement of high-dimensional quantum correlations,
especially spatial ones, is essential for quantum technologies. We
propose and demonstrate an adaptively gated hybrid intensified camera
(HIC) that combines the information from a high spatial resolution
sensor and a high temporal resolution detector, offering precise
control over the number of photons detected within each frame. The HIC
facilitates spatially resolved single-photon counting measurements. We
study the measurement of momentum correlations of photon pairs
generated in type-I spontaneous parametric downconversion with the HIC
and demonstrate the possibility of time-tagging the registered
photons. With a spatial resolution of multi-megapixels and nanosecond
temporal resolution, this system allows for the realization of
previously infeasible quantum optics experiments.
Funder
Fundacja na rzecz Nauki
Polskiej