Polarized optical coherence imaging in turbid media by use of a Zeeman laser

被引：22
|
作者：
Chou, C [1 ]
Peng, LC
Chou, YH
Tang, YH
Han, CY
Lyu, CW
机构：
[1] Natl Yang Ming Univ, Inst Radiol Sci, Taipei 112, Taiwan
[2] Natl Yang Ming Univ, Dept Med Radiat Technol, Taipei 112, Taiwan
[3] Vet Gen Hosp, Dept Radiol, Div Ultrasound, Taipei 112, Taiwan
来源：
OPTICS LETTERS | 2000年 / 25卷 / 20期
关键词：
D O I：
10.1364/OL.25.001517
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method that uses a Zeeman laser in conjunction with a Glan-Thompson analyzer to image an object in a turbid medium is proposed. A heterodyne signal is generated only when the scattering photons are partially polarized, and the spatial coherence is not seriously degraded after the signal propagates in the turbid medium. A system combining polarization discrimination with optical coherence detection to image the object in a scattering medium is successfully demonstrated. The medium is a solution of polystyrene microspheres measuring 1.072 mu m in diameter suspended in distilled water contained in a 10-mm-thick quartz cuvette. The advantages of this optical system, including better selectivity of the weak partially polarized scattering photons and better imaging ability in higher-scattering media, are discussed. (C) 2000 Optical Society of America OCIS codes: 170.1650, 170.0110, 170.7050, 170.3660, 170.3890, 170.4580.
引用
收藏
页码：1517 / 1519
页数：3
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