3.2: Phase recovery with intensity correlation
The Photon correlation holography approach reconstructs the amplitude distributions of the object encoded into the hologram but is not adequate to recover its phase. The reason is that the intensity covariance is related to the modulus of the second-order correlation, and therefore its phase is lost. A similar challenge of phase loss in the intensity correlation also emerges in other correlation imaging methods (Manisha, Bisht, Das, & Singh, 2023; Vinu, Chen, Singh, & Pu, 2020). The phase loss issue in the HBT approach can be tackled by using the interference of the coherence waves. Here, the coherence waves refer to the complex coherence function which follows the propagation nature similar to ...
