DocumentCode
1281221
Title
Waveguide Zeeman interferometry for thin-film chemical sensors
Author
Grace, K.M. ; Shrouf, K. ; Honkanen, S. ; Ayras, P. ; Katila, P. ; Leppihalme, M. ; Johnston, R.G. ; Yang, X. ; Swanson, B. ; Peyghambarian, N.
Author_Institution
Los Alamos Nat. Lab., NM, USA
Volume
33
Issue
19
fYear
1997
fDate
9/11/1997 12:00:00 AM
Firstpage
1651
Lastpage
1653
Abstract
The authors demonstrate a highly sensitive chemical sensor scheme based on Si3N4 channel waveguides, species-selective surface coatings and Zeeman interferometry. The relative phase change between the TE and TM modes under exposure to toluene vapour is measured. The measurements demonstrate the real-time and reversible response with good sensitivity at low concentrations
Keywords
chemical sensors; integrated optics; light interferometry; optical waveguides; silicon compounds; Si3N4; Si3N4 channel waveguides; TE modes; TM modes; highly sensitive sensor scheme; species-selective surface coatings; thin-film chemical sensors; toluene vapour; waveguide Zeeman interferometry;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19971108
Filename
629615
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