Development of an Optical Heterogeneity Evaluation System Using Phase-Shift Digital Holography


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The nondestructive, non-contact, three-dimensional evaluation of optical glass has been important to the manufacturing of high-precision optical components. In order to achieve high-precision nondestructive evaluation of optical heterogeneity, we develop a versatile evaluation system using the parallel phase- shift digital holography, which enables measurements of the optical path differences at a nanometer-scale resolution. The amplitude and phase distributions of the object wave can be reconstructed directly from a single hologram by using the parallel phase-shift digital holography system. The optical heterogeneity of a sample is determined quantitatively based on the distribution of the optical path differences quantitatively.



Key Engineering Materials (Volumes 523-524)

Edited by:

Tojiro Aoyama, Hideki Aoyama, Atsushi Matsubara, Hayato Yoshioka and Libo Zhou




T. Hayashi et al., "Development of an Optical Heterogeneity Evaluation System Using Phase-Shift Digital Holography", Key Engineering Materials, Vols. 523-524, pp. 865-870, 2012

Online since:

November 2012




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