Planar optical waveguide platform for gas sensing using liquid crystal

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

13 Scopus Citations
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Detail(s)

Original languageEnglish
Article number6484871
Pages (from-to)2521-2522
Journal / PublicationIEEE Sensors Journal
Volume13
Issue number7
Publication statusPublished - 2013

Abstract

We propose a simple method for detecting chemical gases using liquid crystal on a planar optical waveguide. Through measuring waveguide output power, this method detects changes in the director of liquid crystal molecules as well as the refractive index, which attributed to gas exposure. We demonstrate this idea by constructing a compact and fast-response ethanol gas sensor. © 2001-2012 IEEE.

Research Area(s)

  • Ethanol, liquid crystal (LCs), optical sensor, planar lightwave waveguide

Citation Format(s)

Planar optical waveguide platform for gas sensing using liquid crystal. / Ho, Wing Fat; Chan, Hau Ping; Yang, Kun Lin.
In: IEEE Sensors Journal, Vol. 13, No. 7, 6484871, 2013, p. 2521-2522.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review