標題: Alternative method for measuring the full-field refractive index of a gradient-index lens with normal incidence heterodyne interferometry
作者: Chen, Yen-Liang
Hsieh, Hung-Chih
Wu, Wang-Tsung
Chang, Wei-Yao
Su, Der-Chin
光電工程學系
Department of Photonics
公開日期: 20-十二月-2010
摘要: A linearly/circularly polarized heterodyne light beam coming from a heterodyne light source with an electro-optic modulator in turn enters a modified Twyman-Green interferometer to measure the surface plane of a GRIN lens. Two groups of periodic sinusoidal segments recorded by a fast complementary metal-oxide semiconductor camera are modified, and their associated phases are derived with the unique technique. The data are substituted into the special equations derived from the Fresnel equations, and the refractive index can be obtained. When the processes are applied to other pixels, the full-field refractive-index distribution can be obtained similarly. Its validity is demonstrated. (C) 2010 Optical Society of America
URI: http://dx.doi.org/10.1364/AO.49.006888
http://hdl.handle.net/11536/26211
ISSN: 0003-6935
DOI: 10.1364/AO.49.006888
期刊: APPLIED OPTICS
Volume: 49
Issue: 36
起始頁: 6888
結束頁: 6892
顯示於類別:期刊論文


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