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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 3 — Mar. 18, 2011

Application of a broadband blue laser diode to trace NO 2 detection using off-beam quartz-enhanced photoacoustic spectroscopy

Hongming Yi, Kun Liu, Weidong Chen, Tu Tan, Lei Wang, and Xiaoming Gao  »View Author Affiliations


Optics Letters, Vol. 36, Issue 4, pp. 481-483 (2011)
http://dx.doi.org/10.1364/OL.36.000481


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Abstract

We applied for the first time, to our knowledge, broadband off-beam quartz-enhanced photoacoustic spectroscopy (BB-OB-QEPAS) to trace NO 2 detection using a broadband blue laser diode centered at 450 nm . A detection limit of 18 ppbv (parts in 10 9 by volume) for NO 2 in N 2 at atmospheric pressure was achieved with an average laser power of 7 mW at a 1 s integration time, which corresponds to a 1 σ normalized noise equivalent absorption coefficient of 4.1 × 10 9 cm 1 W / Hz 1 / 2 . An Allan variance analysis was performed to investigate the long-term stability of the BB-OB-QEPAS-based NO 2 sensor.

© 2011 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(280.3420) Remote sensing and sensors : Laser sensors
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6430) Spectroscopy : Spectroscopy, photothermal

ToC Category:
Remote Sensing

History
Original Manuscript: September 16, 2010
Revised Manuscript: November 22, 2010
Manuscript Accepted: November 29, 2010
Published: February 4, 2011

Virtual Issues
Vol. 6, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Hongming Yi, Kun Liu, Weidong Chen, Tu Tan, Lei Wang, and Xiaoming Gao, "Application of a broadband blue laser diode to trace NO2 detection using off-beam quartz-enhanced photoacoustic spectroscopy," Opt. Lett. 36, 481-483 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-36-4-481

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