Diffraction-grating speckle photography for measuring out-of-plane surface displacement

W. H. Choi; Jae Heung Jo; Soo Chang; J. Y. Myung

doi:10.1117/12.209617

30 May 1995 Diffraction-grating speckle photography for measuring out-of-plane surface displacement

W. H. Choi, Jae Heung Jo, Soo Chang, J. Y. Myung

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209617
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

A speckle-photographic method with a diffraction grating is proposed for improving the sensitivity of out-of-plane displacement measurement. This technique is based on the fact that the speckle displacement due to out- of-plane object displacement increases in the higher-order diffracted field.

Citation Download Citation

W. H. Choi, Jae Heung Jo, Soo Chang, and J. Y. Myung "Diffraction-grating speckle photography for measuring out-of-plane surface displacement", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209617

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