Quantum-enhanced non-interferometric quantitative phase imaging
Scheme of the NIQPR. Two correlated beams labeled signal (s) and idler (i) are generated by the spontaneous parametric down conversion (SPDC) pumped by a CW laser @405 nm and propagate through an imaging system composed of two lenses (L1 is the far field lens with focal length F = 1 cm and L2 is the imaging lens