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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 19 — Sep. 14, 2009
  • pp: 16994–16999

Electromechanical film as a photoacoustic transducer

Albert Manninen, Johan Sand, Jaakko Saarela, Tapio Sorvajärvi, Juha Toivonen, and Rolf Hernberg  »View Author Affiliations


Optics Express, Vol. 17, Issue 19, pp. 16994-16999 (2009)
http://dx.doi.org/10.1364/OE.17.016994


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Abstract

An electromechanical film, EMFi, is utilized as a transducer in a photoacoustic (PA) gas sensor. The film is a sensitive acoustic transducer, it is easily formable, and it exhibits a wide frequency response regardless of its large surface area. As a demonstration of its capabilities, the EMFi-based PA detector is used to measure NO2 with pulsed excitation at 436 and 473 nm. The minimum detectable absorption coefficient is extrapolated to be 5·10−7 cm−1. Improvements for EMFi-based PA detector are discussed.

© 2009 OSA

OCIS Codes
(040.0040) Detectors : Detectors
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Detectors

History
Original Manuscript: June 23, 2009
Revised Manuscript: August 25, 2009
Manuscript Accepted: September 6, 2009
Published: September 9, 2009

Citation
Albert Manninen, Johan Sand, Jaakko Saarela, Tapio Sorvajärvi, Juha Toivonen, and Rolf Hernberg, "Electromechanical film as a photoacoustic transducer," Opt. Express 17, 16994-16999 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-19-16994


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