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Proceedings Paper

Zeolite thin film-coated long-period fiber grating sensors for detection of chemical vapors with high sensitivity
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Paper Abstract

In this study, a new zeolite thin film-coated long-period fiber grating (LPFG) sensor was developed and evaluated for chemical vapor detection. The sensor was fabricated by growing nanoporous MFI-type zeolite (pore size ~0.55nm) thin film on fiber grating using in situ hydrothermal crystallization method. The hydrothermal synthesis process was controlled by continuously monitoring the LPFG transmission spectrum evolution, which indicated the zeolite film formation and growth process. The zeolite-LPFG sensor was activated by calcination in air to remove the structural directing agent from the zeolite pores and then demonstrated for sensitive detection of chemical vapor in gas phases.

Paper Details

Date Published: 5 October 2007
PDF: 5 pages
Proc. SPIE 6757, Sensors for Harsh Environments III, 67570E (5 October 2007); doi: 10.1117/12.731371
Show Author Affiliations
Jian Zhang, Univ. of Cincinnati (United States)
Tao Wei, Univ. of Missouri/Rolla (United States)
Hai Xiao, Univ. of Missouri/Rolla (United States)
Junhang Dong, Univ. of Cincinnati (United States)

Published in SPIE Proceedings Vol. 6757:
Sensors for Harsh Environments III
Hai Xiao; Anbo Wang, Editor(s)

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