Ultra-highly sensitive optical gas sensors based on chemomechanical polymer-incorporated fiber interferometer

Mi Kyung Bae; Jung Ah Lim; Sangsig Kim; Yong Won Song

doi:10.1364/OE.21.002018

Ultra-highly sensitive optical gas sensors based on chemomechanical polymer-incorporated fiber interferometer

Mi Kyung Bae, Jung Ah Lim, Sangsig Kim, Yong Won Song

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

We demonstrate a novel optical sensor for use in explosive gas detection, having a simple structure, ultrahigh sensitivity, room-temperature sensing/refreshing operation, and no local power requirements. The sensor relies on a fiber Fabry-Pérot interferometer prepared using poly(4-vinylpyridine), which induces cavity expansion upon absorption of nitrobenzene, thereby shifting the phase matching conditions of the resonating modes. An estimated sensitivity limit as low as 5 ppb was achieved.

Original language	English
Pages (from-to)	2018-2023
Number of pages	6
Journal	Optics Express
Volume	21
Issue number	2
DOIs	https://doi.org/10.1364/OE.21.002018
Publication status	Published - 2013 Jan 28

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.21.002018

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AB - We demonstrate a novel optical sensor for use in explosive gas detection, having a simple structure, ultrahigh sensitivity, room-temperature sensing/refreshing operation, and no local power requirements. The sensor relies on a fiber Fabry-Pérot interferometer prepared using poly(4-vinylpyridine), which induces cavity expansion upon absorption of nitrobenzene, thereby shifting the phase matching conditions of the resonating modes. An estimated sensitivity limit as low as 5 ppb was achieved.

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Ultra-highly sensitive optical gas sensors based on chemomechanical polymer-incorporated fiber interferometer

Abstract

ASJC Scopus subject areas

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