Video-rate optical low-coherence reflectometry based on a linear smart detector array

被引:40
作者
Bourquin, S
Monterosso, V
Seitz, P
Salathé, RP
机构
[1] Ctr Suisse Elect & Microtech SA, Image Sensing Grp, CH-8048 Zurich, Switzerland
[2] Ecole Polytech Fed Lausanne, Inst Opt Appl, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1364/OL.25.000102
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A low-coherence reflectometer based on a conventional Michelson interferometer and a novel silicon detector chip that allows parallel heterodyne detection is presented. Cross-sectional images of 64 x 256 pixels covering an area of 1.92 mm x 1.3 mm are acquired at video rate and with a sensitivity close to the shot-noise limit. Applications in surface profiling and thickness measurement are demonstrated. (C) 2000 Optical Society of America. OCIS codes: 110.4500, 040.1240.
引用
收藏
页码:102 / 104
页数:3
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