Needle-based reflection refractometry of scattering samples using coherence-gated detection

被引：19

作者：

Zysk, Adam M. ^{[1
]}

Marks, Daniel L. ^{[1
]}

Liu, Dianna Y. ^{[1
]}

Boppart, Stephen A. ^{[1
]}

机构：

[1] Univ Illinois, Mills Breast Canc Inst, Carle Fdn Hosp, Urbana, IL 61801 USA

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 08期

关键词：

D O I：

10.1364/OE.15.004787

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a novel method for in situ refractive index measurement of scattering samples using a needle device. The device employs a fiber-based reflectance refractometer and coherence-gated detection of the reflected optical signal that eliminates scattering-dependent backreflection contributions. Additionally, birefringence changes induced by fiber movement are neutralized by randomizing the source polarizations and averaging the measured Fresnel reflection coefficients over many incident polarization states. Experimental measurements of Intralipid scattering solutions are presented and compared with Monte Carlo simulations. (c) 2007 Optical Society of America

引用

页码：4787 / 4794

页数：8

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