Planar optical waveguide platform for gas sensing using liquid crystal

Wing Fat Ho; Hau Ping Chan; Kun Lin Yang

doi:10.1109/JSEN.2013.2254596

Planar optical waveguide platform for gas sensing using liquid crystal

Wing Fat Ho
, Hau Ping Chan
, Kun Lin Yang

City University of Hong Kong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

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.

Original language	English
Article number	6484871
Pages (from-to)	2521-2522
Journal	IEEE Sensors Journal
Volume	13
Issue number	7
DOIs	https://doi.org/10.1109/JSEN.2013.2254596
Publication status	Published - 2013

Research Keywords

Ethanol
liquid crystal (LCs)
optical sensor
planar lightwave waveguide

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title = "Planar optical waveguide platform for gas sensing using liquid crystal",

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. {\textcopyright} 2001-2012 IEEE.",

keywords = "Ethanol, liquid crystal (LCs), optical sensor, planar lightwave waveguide",

author = "Ho, \{Wing Fat\} and Chan, \{Hau Ping\} and Yang, \{Kun Lin\}",

year = "2013",

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T1 - Planar optical waveguide platform for gas sensing using liquid crystal

AU - Ho, Wing Fat

AU - Chan, Hau Ping

AU - Yang, Kun Lin

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Ethanol

KW - liquid crystal (LCs)

KW - optical sensor

KW - planar lightwave waveguide

UR - https://www.scopus.com/pages/publications/84878772427

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84878772427&origin=recordpage

U2 - 10.1109/JSEN.2013.2254596

DO - 10.1109/JSEN.2013.2254596

M3 - RGC 21 - Publication in refereed journal

SN - 1530-437X

VL - 13

SP - 2521

EP - 2522

JO - IEEE Sensors Journal

JF - IEEE Sensors Journal

IS - 7

M1 - 6484871

ER -

Planar optical waveguide platform for gas sensing using liquid crystal

Abstract

Research Keywords

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