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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 24 — Dec. 15, 2011
  • pp: 4782–4784

Differential optical absorption spectroscopy measurement of CO 2 using a nanosecond white light continuum

Toshihiro Somekawa, Naohiro Manago, Hiroaki Kuze, and Masayuki Fujita  »View Author Affiliations

Optics Letters, Vol. 36, Issue 24, pp. 4782-4784 (2011)

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We built a differential optical absorption spectroscopy system to measure near-surface CO 2 absorption in the atmosphere using a nanosecond white light continuum. The white light laser can cover wavelengths ranging from 420 to 2400 nm, where the CO 2 and H 2 O absorption lines are located. At an optical path length of 568 m, it was possible to evaluate atmospheric CO 2 concentration from absorption bands of CO 2 and H 2 O in the vicinity of 2000 nm detected by broadband white light simultaneously.

© 2011 Optical Society of America

OCIS Codes
(280.1120) Remote sensing and sensors : Air pollution monitoring
(300.6430) Spectroscopy : Spectroscopy, photothermal
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:

Original Manuscript: August 18, 2011
Revised Manuscript: November 10, 2011
Manuscript Accepted: November 10, 2011
Published: December 14, 2011

Toshihiro Somekawa, Naohiro Manago, Hiroaki Kuze, and Masayuki Fujita, "Differential optical absorption spectroscopy measurement of CO2 using a nanosecond white light continuum," Opt. Lett. 36, 4782-4784 (2011)

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Fig. 1. Fig. 2. Fig. 3.

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