Gas-Analysis in the UV-region using a long-length Hollow-Core-Waveguide

被引：9

作者：

Kötschau, R ^{[1
]}

Eckhardt, HS ^{[1
]}

Klein, KF ^{[1
]}

Behler, K ^{[1
]}

Hillrichs, G ^{[1
]}

机构：

[1] Univ Appl Sci Giessen Friedberg, D-61169 Friedberg, Germany

来源：

OPTICAL FIBERS AND SENSORS FOR MEDICAL APPLICATIONS III | 2003年 / 4957卷

关键词：

optical fiber; hollow core waveguide; flexible beam guiding; UV-applications; gas-analysis; NOX; NH3;

D O I：

10.1117/12.478062

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In the DUV-region and MIR-region, the so-called Hollow-Core-Waveguide is an alternative for light-delivery systems, because flexible silica-based fibers are no longer useable due to the high intrinsic absorption of silica. In addition to light-transportation, only the HCW can be used as an intrinsic sensor: due to the long path-length through the HCW with similar intensity profiles at the input and output, the spectral absorption of the gas under test can easily be monitored. Up to now; the gases are analyzed in the MIR-region, mainly. However, the UV-region offers a lot of advantages. Using commercially available components for the UV-light source and the detector-system, the whole system with UV hollow-core-waveguides has to be studied in the wavelength-region from 170 nm up to 350 nm. With this experimental system, it is obvious to observe the UV-absorption of air and carbon dioxide below 200 nm, using nitrogen as a reference gas. In addition, ozone generated by the deuterium-lamp itself and several gas mixtures (e.g. 2 ppm toluene or xylene in carbon dioxide) were studied in detail.

引用

页码：134 / 141

页数：8

共 24 条

[1]

ABEL T, HOLLOW GLASS WAVEGUI

[2]

ARNDT R, 2001, SPIE P, V4253, P42

[3]

FABIAN H, 1992, SPIE P, V1649, P80

[4]

FABIAN H, 1993, SPIE, V1893, P24

[5]

FETZER GJ, 2003, SPIE P, V4957

[6]

France P.W., 1990, FLUORIDE GLASS OPTIC

[7]

*FRAUNH I FREIB, 2002, SASS CHAIRM 2 WORKSH

[8] FLEXIBLE INFRARED WAVE-GUIDES FOR HIGH-POWER TRANSMISSION [J].

GARMIRE, E ;

MCMAHON, T ;

BASS, M .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1980, 16 (01) :23-32

[9]

GMACHL CF, 2003, SPIE P, V4995

[10] A review of IR transmitting, hollow waveguides [J].

Harrington, JA .

FIBER AND INTEGRATED OPTICS, 2000, 19 (03) :211-227

← 1 2 3 →