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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 18 — Jun. 20, 2009
  • pp: 3355–3361

Development of an ambient pressure laser-induced fluorescence instrument for nitrogen dioxide

Jeremy Parra and Linda A. George  »View Author Affiliations


Applied Optics, Vol. 48, Issue 18, pp. 3355-3361 (2009)
http://dx.doi.org/10.1364/AO.48.003355


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Abstract

Concerns about the health effects of nitrogen dioxide ( NO 2 ) and its role in forming deleterious atmospheric species have made it desirable to have low-cost, sensitive ambient measurements of NO 2 . We have developed a continuous-wave laser-diode laser-induced fluorescence (LIF) system for NO 2 that operates at ambient pressure, thereby eliminating the need for an expensive pumping system. The current prototype system has achieved sensitivity several orders of magnitude beyond previous efforts at ambient pressure (limit of detection of 2 ppb , 60 s averaging time). Ambient measurements of NO 2 were made in Portland, Oregon using both the standard NO 2 chemiluminescence method and the LIF instrument and showed good agreement ( r 2 = 0.92 ).

© 2009 Optical Society of America

OCIS Codes
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(120.2440) Instrumentation, measurement, and metrology : Filters
(140.2020) Lasers and laser optics : Diode lasers
(300.2530) Spectroscopy : Fluorescence, laser-induced
(330.6100) Vision, color, and visual optics : Spatial discrimination

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: February 25, 2009
Manuscript Accepted: April 22, 2009
Published: June 10, 2009

Citation
Jeremy Parra and Linda A. George, "Development of an ambient pressure laser-induced fluorescence instrument for nitrogen dioxide," Appl. Opt. 48, 3355-3361 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-18-3355

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