Approaching Quantum-Optimal Imaging without Prior Knowledge of the Object Location
Michael R. Grace, Zachary Dutton, Amit Ashok, Saikat Guha · 2020
Spatial-mode-sorting (SPADE) receivers surpass Rayleigh’s criterion for in coherent imaging but are sensitive to nuisance parameters (e.g., misalignment). Our multistage detection strategy uses preliminary physical measurement(s) to build up required prior information for near-quantum-optimal, sub-diffraction imaging.