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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 23 — Aug. 10, 2012
  • pp: 5724–5734

High sensitive detection of nitric oxide using laser induced photoacoustic spectroscopy at 213 nm

Mohammed A. Gondal, Ahmed Asaad I. Khalil, and Noura Al-Suliman  »View Author Affiliations


Applied Optics, Vol. 51, Issue 23, pp. 5724-5734 (2012)
http://dx.doi.org/10.1364/AO.51.005724


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Abstract

Trace level detection of nitric oxide (NO) is of great interest for a wide range of applications such as environment and human health. For this purpose, a high sensitive sensor based photoacoustic spectroscopy (PAS) principle has been developed at our laboratory for detection of NO at very low concentration (ppbV). For optimization of the PAS signal and to achieve higher sensitivity, parametric dependence investigation was carried out where PAS signal dependence on NO gas pressure, cell geometry, buffer gas (Ar, N2, He), and laser pulse energy used three PAS cells developed locally. The best sensitivity achieved with three cells was 41, 11, 20 ppbv, respectively. It is worth reporting that the best PAS signal to noise ratio was achieved by using a cylindrical cell having three acoustic filters and argon as a buffer gas.

© 2012 Optical Society of America

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(300.0300) Spectroscopy : Spectroscopy

ToC Category:
Spectroscopy

History
Original Manuscript: April 16, 2012
Revised Manuscript: May 26, 2012
Manuscript Accepted: June 21, 2012
Published: August 9, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Mohammed A. Gondal, Ahmed Asaad I. Khalil, and Noura Al-Suliman, "High sensitive detection of nitric oxide using laser induced photoacoustic spectroscopy at 213 nm," Appl. Opt. 51, 5724-5734 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-23-5724

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