Doppler phase-shifting digital holography and its application to surface shape measurement

Center for Optical Research and Education (CORE), Utsunomiya University, Yoto 7-1-2,Utsunomiya, Tochigi 321-8585, Japan.
Optics Letters (Impact Factor: 3.29). 05/2010; 35(10):1548-50. DOI: 10.1364/OL.35.001548
Source: PubMed


Digital holography utilizing the optical Doppler effect is proposed in which the time variation of interference fringes is recorded using a high-speed CMOS camera. The complex amplitude diffracted from the object wave is extracted by time-domain Fourier transforming the recorded interference fringes. The method was used to measure the surface shape of a concave mirror under a disturbed environment.

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