... holograms in phase- shifting digital holography is shown in Fig 4. 11 A linearly polarized laser beam (the wavelength of 635 nm) is collimated by using a spatial filter and a lens, and is then divided into ... in digital holography, and Fig 4. 10 shows a top view of the specimen and an area of interest (inside the black box) The concrete dimension is discussed in Section 5.2.2 Figure 4. 10 Top view of ... red, green and blue channels are (0 .42 , 0 .44 , 0 .46 , 0 .48 ), (0 .47 , 0 .49 , 0.51, 0.53) and (0.52, 109 CHAPTER FOUR SIMULATIONS AND EXPERIMENTAL WORK 0. 54, 0.56, 0.58), respectively Since two phase masks...