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

Jian Zhang; Tao Wei; Hai Xiao; Junhang Dong

doi:10.1117/12.731371

5 October 2007 Zeolite thin film-coated long-period fiber grating sensors for detection of chemical vapors with high sensitivity

Jian Zhang, Tao Wei, Hai Xiao, Junhang Dong

Author Affiliations +

Proceedings Volume 6757, Sensors for Harsh Environments III; 67570E (2007) https://doi.org/10.1117/12.731371
Event: Optics East, 2007, Boston, MA, United States

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.

Citation Download Citation

Jian Zhang, Tao Wei, Hai Xiao, and Junhang Dong "Zeolite thin film-coated long-period fiber grating sensors for detection of chemical vapors with high sensitivity", Proc. SPIE 6757, Sensors for Harsh Environments III, 67570E (5 October 2007); https://doi.org/10.1117/12.731371

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