Theory of fiber-optic, evanescent-wave spectroscopy and sensors

被引：164

作者：

Messica, A ^{[1
]}

Greenstein, A ^{[1
]}

Katzir, A ^{[1
]}

机构：

[1] TEL AVIV UNIV,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,SCH PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL

来源：

APPLIED OPTICS | 1996年 / 35卷 / 13期

关键词：

D O I：

10.1364/AO.35.002274

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A general theory for fiber-optic, evanescent-wave spectroscopy and sensors is presented for straight, uncladded, step-index, multimode fibers. A three-dimensional model is formulated within the framework of geometric optics. The model includes various launching conditions, input and output end-face Fresnel transmission losses, multiple Fresnel reflections, bulk absorption, and evanescent-wave absorption. An evanescent-wave sensor response is analyzed as a function of externally controlled parameters such as coupling angle, f number, fiber length, and diameter. Conclusions are drawn for several experimental apparatuses. (C) 1996 Optical Society of America

引用

页码：2274 / 2284

页数：11

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