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.
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页数：6
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