Measurement of relief depth and refractive index variation of phase hologram

Xiao-Chun Zhang; Yongkang Guo; Lurong Guo

doi:10.1117/12.140451

2 March 1993 Measurement of relief depth and refractive index variation of phase hologram

Xiao-Chun Zhang, Yongkang Guo, Lurong Guo

Proceedings Volume 1732, Holographics International '92; (1993) https://doi.org/10.1117/12.140451
Event: Holographics International '92, 1992, London, United Kingdom

Abstract

The paper proposes a method of measuring relief depth and refractive index variation which distribute in a holographic phase grating. By this method an interference microscope and a microcomputer with a CCD camera are used in measuring and can obtain highly precise data. In the paper, an example of measuring DCG grating is presented, the errors of these data are analyzed and optimum conditions which make a measurement system keep its highest accuracy are given.

Citation Download Citation

Xiao-Chun Zhang, Yongkang Guo, and Lurong Guo "Measurement of relief depth and refractive index variation of phase hologram", Proc. SPIE 1732, Holographics International '92, (2 March 1993); https://doi.org/10.1117/12.140451

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