Cross-polarized backscatter in optical coherence tomography of biological tissue

被引:115
作者
Schmitt, JM [1 ]
Xiang, SH [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Hong Kong, Peoples R China
关键词
D O I
10.1364/OL.23.001060
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have observed that cross-polarized backscatter measured by optical coherence tomography of human skin In vivo is surprisingly strong. We identify and give evidence of its main origins: single scattering from nonspherical particles and multiple scattering by particles with sizes much larger than a wavelength. Our findings show that depolarized light scattered by dense large-diameter particles maintains a high degree of temporal coherence and that differential-polarization imaging improves contrast between particles of different sizes. (C) 1998 Optical Society of America OCIS codes: 170.0170, 260.5430, 030.1640, 290.4210.
引用
收藏
页码:1060 / 1062
页数:3
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