Polymer-coated vertical-cavity surface-emitting laser diode vapor sensor

Publication: Research - peer-reviewConference article – Annual report year: 2010

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We report a new method for monitoring vapor concentration of volatile organic compounds using a vertical-cavity surface-emitting laser (VCSEL). The VCSEL is coated with a polymer thin film on the top distributed Bragg reflector (DBR). The analyte absorption is transduced to the electrical domain through modulation of the VCSEL output power as the polymer swell. We have investigated the responsivity of this technique experimentally using a plasma polymerized polystyrene coating and explain the results theoretically as a reflectance modulation of the top DBR.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Publication date2010
Volume7615
Pages76150A
ISSN0277-786X
DOIs
StatePublished

Conference

ConferenceVertical-Cavity Surface-Emitting Lasers
Number14
CitySan Francisco, CA, USA
Period01/01/10 → …

Bibliographical note

Copyright 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

CitationsWeb of Science® Times Cited: 1

Keywords

  • Vertical-cavity surface-emitting laser, Gas sensing, Functionalization, Sensor polymer, Volatile organic compound, Vapor sensor
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