A cylindrical liquid-core waveguide

被引：54

作者：

Dress, P

Franke, H

机构：

[1] Lab. für Angewandte Physik, Gerhard-Mercator-Univ. Duisburg, D-47057 Duisburg

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1996年 / 63卷 / 01期

关键词：

D O I：

10.1007/BF01112830

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel concept for a liquid-core lightguide in cylindrical symmetry is presented. For a concrete 17 cm long device using water as a core and the transparent fluorinated polymer Teflon as a cladding layer, the coupling efficiency and guiding properties are investigated theoretically and compared with experimental results. The guide is found to exhibit low losses. A possible application of this type of guide is investigated by replacing the optical cell of a standard UV/VIS spectrometer by the cylindrical liquid-core waveguide. An increasing sensitivity for especially low concentrations of a polluting dye by a factor of about 15 is observed. Concentrations as low as a few parts per billion of the pollutant can be detected with a good signal-to-noise ratio.

引用

页码：12 / 19

页数：8

共 16 条

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