FIBER-OPTIC-GRADED-INDEX-LENS ABSORBENCY SENSOR WITH WAVELENGTH-SCANNING CAPABILITY

被引：5

作者：

LANDIS, DA

SELISKAR, CJ

HEINEMAN, WR

机构：

[1] Department of Chemistry, University of Cincinnati, Cincinnati, OH

来源：

APPLIED OPTICS | 1994年 / 33卷 / 16期

关键词：

OPTICAL ABSORBENCY; FIBEROPTIC SENSOR; GRADED-INDEX LENS; WAVELENGTH SCANNING;

D O I：

10.1364/AO.33.003432

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A single optical-fiber absorbance sensor that contains a graded-index lens is described. The sensor can be tailored for a desired broad wavelength region, path length, and size. Laboratory evaluations of sensors of varying sizes and path lengths are presented. The sensors, even without the added expense of optical coating, report true absorbance spectra for the 420-850-nm wavelength region with a linear response over a wide absorbance range. Direct comparison with several other sensor configurations shows that the graded-index-lens-band sensor has a high optical efficiency. Potential applications of the sensor include absorbance measurements at hazardous or remote sites and in vivo medical applications.

引用

页码：3432 / 3439

页数：8

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