Highly sensitive chemical sensors by functional integration of nanoporous zeolites with photonic devices

Tao Wei; John Montoya; Hai Xiao; Jian Zhang; Hunhang Dong

doi:10.1117/12.721224

3 May 2007 Highly sensitive chemical sensors by functional integration of nanoporous zeolites with photonic devices

Tao Wei, John Montoya, Hai Xiao, Jian Zhang, Hunhang Dong

Proceedings Volume 6556, Micro (MEMS) and Nanotechnologies for Defense and Security; 655617 (2007) https://doi.org/10.1117/12.721224
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

Recently, we discovered that the nanoporous zeolite materials possess the unique combination of optical and chemical properties suitable for developing highly sensitive chemical sensors. This paper summarizes our recent work in developing such highly sensitive chemical sensors by functionally integrating zeolite thin films with optical fiber devices. These include the zeolite Fabry-Perot interferometric sensor and the zeolite thin film-coated thermal long period fiber grating sensor. Both types of sensors operate by monitoring the adsorption-induced optical refractive index changes in the zeolite thin film. The sensors were tested using various organic chemicals with different molecular sizes and in both vapor and liquid phases.

Citation Download Citation

Tao Wei, John Montoya, Hai Xiao, Jian Zhang, and Hunhang Dong "Highly sensitive chemical sensors by functional integration of nanoporous zeolites with photonic devices", Proc. SPIE 6556, Micro (MEMS) and Nanotechnologies for Defense and Security, 655617 (3 May 2007); https://doi.org/10.1117/12.721224

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