Fig. 3: Biphoton phase measurement result.
From: Position-correlated biphoton wavefront sensing for quantum adaptive imaging
The calculated Legendre coefficients (excluding L0,0, on the left of each panel) and phase distributions (on the right of each panel) are shown for the five cases: a no phase, b a saddle phase, c Legendre modes, d a plastic film, and e the film with correction. The gradient distribution of the no-phase case is the reference of the other cases
