A novel algorithm for high sensitivity in measuring surface variation based on volume holography

Ching Cherng Sun; Chih Yuan Hsu; Wei Chia Su; Yuh Ouyang; Jenq Yang Chang

doi:10.1002/mop.10448

A novel algorithm for high sensitivity in measuring surface variation based on volume holography

Ching Cherng Sun, Chih Yuan Hsu, Wei Chia Su, Yuh Ouyang, Jenq Yang Chang

Graduate Institute of Photonics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

A novel design for the precise measurement of surface variation based on volume holography is proposed. The volume hologram is a spatial filter, which records the index grating corresponding to the interference fringes by a plane wave and a divergent spherical wave. In the measuring process, a point source attached to a probe is used to read the hologram. A precise measurement can be achieved because the horizontal displacement of the point source is very sensitive to the hologram. This sensitivity is higher than that of a holographic confocal microscopy based on the longitudinal displacement.

Original language	English
Pages (from-to)	319-321
Number of pages	3
Journal	Microwave and Optical Technology Letters
Volume	34
Issue number	4
DOIs	https://doi.org/10.1002/mop.10448
Publication status	Published - 2002 Aug 20

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1002/mop.10448

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AU - Ouyang, Yuh

AU - Chang, Jenq Yang

PY - 2002/8/20

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