Surface contour measurement by LC-SLM digital phase-shifting holography

Qinghe Song; Yanmei Wu; Junchang Li; Jinbin Gui

doi:10.1117/12.755319

4 January 2008 Surface contour measurement by LC-SLM digital phase-shifting holography

Qinghe Song, Yanmei Wu, Junchang Li, Jinbin Gui

Proceedings Volume 6832, Holography and Diffractive Optics III; 68320B (2008) https://doi.org/10.1117/12.755319
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Surface contouring by digital phase-shifting holograph system based on the LC-SLM is proposed in the paper. Special phase-shift is introduced in the reference beam by changing code pattern displayed on the LC-SLM. And the reconstruction quality of complex amplitude of object wave has been improved greatly. The surface contouring measurement can be realized by means of phase change introduced by rotating the object beam.

Citation Download Citation

Qinghe Song, Yanmei Wu, Junchang Li, and Jinbin Gui "Surface contour measurement by LC-SLM digital phase-shifting holography", Proc. SPIE 6832, Holography and Diffractive Optics III, 68320B (4 January 2008); https://doi.org/10.1117/12.755319

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KEYWORDS

Phase shifts

Digital holography

Computer programming

Holography

Charge-coupled devices

Holograms

CCD image sensors

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