National Changhua University of Education Institutional Repository : Item 987654321/18193
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题名: A Novel Algorithm for High Sensitivity in Measuring Surface Variation Based on Volume Holography
作者: Sun, Ching-Cherng;Hsu, Chih-Yuan;Su, Wei-Chia;Yuh Ouyang;Chang, Jenq-Yang
贡献者: 光電科技研究所
关键词: Volume holography;Photorefractive effect;Spatial filter;Holography storage
日期: 2002-08
上传时间: 2014-04-01T03:56:33Z
出版者: Wiley Periodicals, Inc.
摘要: 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.
關聯: Microwave and Optical Technology Letters, 34(4): 319-321
显示于类别:[光電科技研究所] 期刊論文

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