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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 25 — Sep. 1, 2012
  • pp: 6009–6013

Sensing of formaldehyde using a distributed feedback interband cascade laser emitting around 3493 nm

Stefan Lundqvist, Pawel Kluczynski, Robert Weih, Michael von Edlinger, Lars Nähle, Marc Fischer, Adam Bauer, Sven Höfling, and Johannes Koeth  »View Author Affiliations

Applied Optics, Vol. 51, Issue 25, pp. 6009-6013 (2012)

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We have demonstrated sensing of formaldehyde (H2CO) using a room-temperature distributed feedback interband cascade laser (ICL) emitting around 3493 nm. The ICL has been characterized and proved to be very suitable for tunable laser spectroscopy (TLS). The H2CO TLS spectra were recorded in direct absorption mode and showed excellent agreement with the Pacific Northwest National Laboratory database. The measurements reported here were taken from a series of measurements of a mixture of H2CO in air obtained by vaporizing a solution also containing methanol and formic acid. We obtained a resolution limit better than 1ppm×m assuming a relative absorption of 103.

© 2012 Optical Society of America

OCIS Codes
(280.3420) Remote sensing and sensors : Laser sensors
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6380) Spectroscopy : Spectroscopy, modulation

ToC Category:

Original Manuscript: May 22, 2012
Manuscript Accepted: June 28, 2012
Published: August 23, 2012

Virtual Issues
Vol. 7, Iss. 11 Virtual Journal for Biomedical Optics

Stefan Lundqvist, Pawel Kluczynski, Robert Weih, Michael von Edlinger, Lars Nähle, Marc Fischer, Adam Bauer, Sven Höfling, and Johannes Koeth, "Sensing of formaldehyde using a distributed feedback interband cascade laser emitting around 3493 nm," Appl. Opt. 51, 6009-6013 (2012)

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