Figure 5
From: Interference phase-contrast imaging technology without beam separation
Images before and after arithmetic processing. (a,b) Observed raw images before arithmetic processing for the TE mode and TM mode. The light source is a CW emission of “CW65.” (c,d) Images of the MD after arithmetic processing for the TE mode and TM mode. The light source is a CW emission of “CW65.” The image of the MD darkens alternately along the phase difference line in a direction perpendicular to the lattice vector. (e,f) Observed raw images before arithmetic processing for the TE mode and TM mode. The light source is driven by the 600-MHz modulation signal in the range of 58 mA to 0 mA. The speckle interference is removed. (g,h) Images of the MD after arithmetic processing for the TE mode and TM mode. The light source is driven by the 600-MHz modulation signal in the range of 58 mA to 0 mA. The rough brightness is improved and the dark region of TM mode becomes narrower than that in (d).
