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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 22 — Oct. 25, 2010
  • pp: 23353–23357

Detection of nitric oxide in air with a 5.2 μm distributed-feedback quantum cascade laser using quartz-enhanced photoacoustic spectroscopy

Stuart Gray, Anping Liu, Feng Xie, and Chung-en Zah  »View Author Affiliations

Optics Express, Vol. 18, Issue 22, pp. 23353-23357 (2010)

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We demonstrate the detection of nitric oxide in both air and nitrogen atmospheres with a 5.2 μm distributed-feedback quantum cascade laser in a quartz-enhanced photoacoustic spectroscopy system. The photoacoustic signal generated by nitric oxide is shown to be several times larger in air than in nitrogen due to the faster vibrational-translational energy relaxation process induced by the presence of oxygen. A sensitivity of 2.5 parts-per-million by volume is achieved in air at atmospheric pressure.

© 2010 OSA

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(280.3420) Remote sensing and sensors : Laser sensors
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Remote Sensing

Original Manuscript: September 8, 2010
Revised Manuscript: October 8, 2010
Manuscript Accepted: October 11, 2010
Published: October 20, 2010

Virtual Issues
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics

Stuart Gray, Anping Liu, Feng Xie, and Chung-en Zah, "Detection of nitric oxide in air with a 5.2 μm distributed-feedback quantum cascade laser using quartz-enhanced photoacoustic spectroscopy," Opt. Express 18, 23353-23357 (2010)

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  1. A. A. Kosterev, F. K. Tittel, D. V. Serebryakov, A. L. Malinovsky, and I. V. Morozov, “Applications of quartz tuning forks in spectroscopic gas sensing,” Rev. Sci. Instrum. 76(4), 043105 (2005). [CrossRef]
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