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【答案】应助回帖
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gruyclewee: 金币+3, 感谢应助，奖励一下。 2014-02-20 21:06:19
rowland: 金币+5, ★★★★★最佳答案 2014-02-20 23:07:40
jssxh: 检索EPI+1, 谢谢参与，请继续关注本版块！ 2014-02-27 08:44:57
EI
Accession number: 12008854
Title: Hydrogen sensor based on side-polished fiber Bragg gratings coated with thin palladium film
Authors: Hongliang Liu1; Minghong Yang1 Email author minghong.yang@whut.edu.cn; Jixiang Dai1; Kun Cao1; Hansheng Liao1; Pengcheng Zhang1
Author affiliation: 1 Nat. Eng. Lab. for Opt. Fiber Sensors, Wuhan Univ. of Technol., Wuhan, China
Source title: Proceedings of the SPIE - The International Society for Optical Engineering
Abbreviated source title: Proc. SPIE - Int. Soc. Opt. Eng. (USA)
Volume: 7753
Publication date: 2011
Pages: 77538O (4 pp.)
Language: English
ISSN: 0277-786X
CODEN: PSISDG
Document type: Conference article (CA)
Conference name: 21st International Conference on Optical Fiber Sensors
Conference date: 15-19 May 2011
Conference location: Ottawa, ON, Canada
Publisher: SPIE - The International Society for Optical Engineering
Country of publication: USA
Material Identity Number: AY54-2011-129
Abstract: A hydrogen sensor based on side-polished fiber Bragg grating (FBG) coated with Pd thin film by magnetron sputtering is proposed. Hydrogen concentration is correlated with the shift of FBG central wavelength, since refractive index change in hydrogen sensitive Pd coating deposited on side-polished FBG affects the effective refractive index of FBG, and therefore Bragg wavelength is shifted. Experimental results demonstrate that FBG wavelength shifts to lower wavelength as the hydrogen concentration increases. The proposed optical fiber hydrogen sensor shows 15pm wavelength shift in 0.01% volume percentage of hydrogen concentration, and totally 246pm offset exists in pure hydrogen environment.
Number of references: 6
Inspec controlled terms: Bragg gratings - fibre optic sensors - gas sensors - metallic thin films - palladium - refractive index - sputtering
Uncontrolled terms: optical fiber hydrogen sensor - side-polished fiber Bragg gratings - palladium thin film - magnetron sputtering - hydrogen concentration - FBG central wavelength - refractive index - Bragg wavelength - wavelength 15 pm - H2
Inspec classification codes: A4281P Fibre optic sensors; fibre gyros - A8280T Chemical sensors - A4280F Gratings, echelles - B7230E Fibre optic sensors - B7230L Chemical sensors - B7320T Chemical variables measurement - B4125 Fibre optics
Numerical data indexing: wavelength 1.5E-11 m
Chemical indexing: H2/el H/el
Treatment: Experimental (EXP)
Discipline: Physics (A); Electrical/Electronic engineering (B)
DOI: 10.1117/12.884679
IPC Code: G02B5/18 SECTION G PHYSICS
OPTICS making optical elements or apparatus , , , or other appropriate subclasses or classes; materials per se, see the relevant places, e.g. ,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS takes precedence; optical elements specially adapted for use in lighting devices or systems thereof ; measuring-instruments, see the relevant subclass of class...
Optical elements other than lenses light guides ; optical logic elements 4
Diffracting gratings |
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