Multidimensional digital holographic microscopy based on computational coherent superposition for coherent and incoherent light sensing

Phase-shifting interferometry selectively extracting wavelength information, which is termed the computational coherent superposition (CCS) of multiple wavelengths, was first proposed in 2013. In this proceeding, phase-shifting interferometry and its application to digital holography are described. We apply CCS to self-interference incoherent color holography and construct single-path, mechanical-motion-free, wavelength-multiplexed, incoherent color digital holographic microscopy systems. Also, we numerically investigate quantum fluctuation in phase-shifting interferometry with the aim of recording weak light such as natural light and nonlinear light. After that, we briefly discuss the difference between color digital holography with single-shot CCS and color digital holography with single-shot phase-shifting interferometry and a Bayer color image sensor.