Absorption sensor based on total internal reflection diffraction grating

被引：7
|
作者：
Sarov, Y [1 ]
Sainov, S [1 ]
机构：
[1] Bulgarian Acad Sci, Cent Lab Opt Storage & Proc Informat, BU-1113 Sofia, Bulgaria
来源：
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2002年 / 4卷 / 04期
关键词：
sensors; optical constants; gratings;
D O I：
10.1088/1464-4258/4/4/303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Strongly absorbing liquids can be investigated using a total internal reflection diffraction grating. In this paper we have considered a model of a simple absorption sensor, based on this type of grating. The derived theoretical description of the grating's behaviour allows the inverse problem to be solved, i.e. the absorption coefficient of the liquid to be determined. from the diffraction efficiency change at different orders. The comparison between the theory and experiments shows satisfactory agreement within the experimental error.
引用
收藏
页码：382 / 386
页数：5
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