OSA's Digital Library

Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 2 — Feb. 10, 2005
  • pp: 119–121

Photo-acoustic spectrum and detection of nitrogen dioxide

Guiyin Zhang, Lianshui Zhang, and Xiaofeng Han  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 2, pp. 119-121 (2005)


View Full Text Article

Acrobat PDF (205 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

The photo-acoustic (PA) spectrum of nitrogen dioxide (NO2) in the range of 420-520 nm with a Nd:YAG pumped optical parametric generator and amplifier as radiation source is presented. The spectrum has a characteristic of banded structure superimposed on continuum. The banded structure of the spectrum can be assigned to NO2 B2B1<--X2A1 transition. While the continual one comes from the chaos states of the first excited state A2B2 and the high vibration levels of the ground state X2A1. The relationship of PA signal with buffer gas pressure and NO2 concentration is measured. The PA signal intensity increases with buffer gas pressure and almost is invariable when the buffer gas pressure is more than 3.00*10^(4) Pa. The PA signal intensity has linearity with NO2 concentration. The detection limit is about 2*10^(-5) on the basis of SNR = 1, however lower value of the detection limit can be expected by improving the apparatus properties.

© 2005 Chinese Optics Letters

OCIS Codes
(010.1120) Atmospheric and oceanic optics : Air pollution monitoring
(300.6430) Spectroscopy : Spectroscopy, photothermal

Citation
Guiyin Zhang, Lianshui Zhang, and Xiaofeng Han, "Photo-acoustic spectrum and detection of nitrogen dioxide," Chin. Opt. Lett. 3, 119-121 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-2-119

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited