Measurement of surface shape and deformation by phase-shifting image digital holography

Ichirou Yamaguchi; Jun-ichi Kato; Hirokazu Matsuzaki

doi:10.1117/12.525858

19 November 2003 Measurement of surface shape and deformation by phase-shifting image digital holography

Ichirou Yamaguchi, Jun-ichi Kato, Hirokazu Matsuzaki

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.525858
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

Surface shape and deformation measurement by phase-shifting digital holography using an imaging setup is presented. The differences of the reconstructed phases before and after tilt of the illumination beams and object deformation provide the contour lines of the surface height and deformation, respectively. Suppression of speckle noise and comparisons between experiments and calculation are discussed.

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Ichirou Yamaguchi, Jun-ichi Kato, and Hirokazu Matsuzaki "Measurement of surface shape and deformation by phase-shifting image digital holography", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.525858

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KEYWORDS

Digital holography

Phase shifts

Speckle

Digital imaging

Beam splitters

Mirrors

Charge-coupled devices

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