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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 11 — May. 21, 2012
  • pp: 11976–11985

Odd harmonics with wavelength modulation spectroscopy for recovering gas absorbance shape

Peng Zhimin, Ding Yanjun, Che Lu, and Yang Qiansuo  »View Author Affiliations


Optics Express, Vol. 20, Issue 11, pp. 11976-11985 (2012)
http://dx.doi.org/10.1364/OE.20.011976


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Abstract

In this paper, a new method for recovering gas absorbance shape using wavelength modulation spectroscopy is proposed. We have mathematically proven that the gas absorbance shape can be directly recovered using the data of X and Y components of odd harmonics, regardless of the value of the modulation depth. The transitions of NH3 near 1531 nm are selected to recover the absorbance shape using numerical simulation and experimental technique. The simulation and experiment results show that our proposed method can simply and accurately recover the gas absorbance shape.

© 2012 OSA

OCIS Codes
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers

ToC Category:
Spectroscopy

History
Original Manuscript: April 24, 2012
Revised Manuscript: May 6, 2012
Manuscript Accepted: May 7, 2012
Published: May 10, 2012

Citation
Peng Zhimin, Ding Yanjun, Che Lu, and Yang Qiansuo, "Odd harmonics with wavelength modulation spectroscopy for recovering gas absorbance shape," Opt. Express 20, 11976-11985 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-11-11976


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