Planar Optical Sensor for Trichlorofluoromethane

被引：0

作者：

Girschikofsky, Maiko ^{[1
]}

Ryvlin, Dimitrij ^{[2
]}

Hessler, Steffen ^{[1
]}

Waldvogel, Siegfried R. ^{[2
]}

Hellmann, Ralf ^{[1
]}

机构：

[1] Univ Appl Sci Aschaffenburg, Appl Laser & Photon Grp, Wurzburger Str 45, D-63743 Aschaffenburg, Germany

[2] Johannes Gutenberg Univ Mainz, Inst Organ, Duesbergweg 10-14, D-55128 Mainz, Germany

来源：

SPIE FUTURE SENSING TECHNOLOGIES | 2019年 / 11197卷

关键词：

Ozone-depleting-substance; chemo-optical remote sensing; Cyclodextrin; planar Bragg grating; CYCLODEXTRINS; EMISSIONS; INCREASE; CFC-11;

D O I：

10.1117/12.2542013

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

We demonstrate a planar-optical Bragg grating based chemical sensor device for the detection of the environmentally harmful, highly ozone-depleting-substance trichlorofluoromethane. By applying an approximately 100 nm thin layer of differently substituted cyclodextrin-derivatives on top of the sensitive region of the silica-based Bragg grating sensor, supramolecular host-guest interactions of the oligo-saccharide affinity material and the chlorofluorocarbon analyte are favored, leading to a significant increase of the sensitivity towards the airborne pollutant. The all-optical sensor thus allows a reliable online in-situ detection and measurement of trichlorofluoromethane in real-time that features a limit of detection of down to 25 ppm.

引用

页数：6

共 29 条

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