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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 6 — Feb. 20, 2007
  • pp: 978–985

Design of a difference-frequency infrared laser spectrometer for absorption line-shape studies

R. Wehr, J. R. Drummond, and A. D. May  »View Author Affiliations


Applied Optics, Vol. 46, Issue 6, pp. 978-985 (2007)
http://dx.doi.org/10.1364/AO.46.000978


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Abstract

An infrared laser spectrometer based on difference-frequency generation in LiIO 3 is described. The spectrometer has a frequency uncertainty of less than 1 MHz and a signal-to-noise ratio between 3000:1 and 10,000:1. These properties allow the spectrometer to be used for studies of the non-Lorentzian and non-Voigt character of absorption line shapes in atmospheric trace gases.

© 2007 Optical Society of America

OCIS Codes
(300.1030) Spectroscopy : Absorption
(300.6190) Spectroscopy : Spectrometers
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6360) Spectroscopy : Spectroscopy, laser
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Spectroscopy

History
Original Manuscript: March 31, 2006
Revised Manuscript: September 27, 2006
Manuscript Accepted: October 17, 2006
Published: February 2, 2007

Citation
R. Wehr, J. R. Drummond, and A. D. May, "Design of a difference-frequency infrared laser spectrometer for absorption line-shape studies," Appl. Opt. 46, 978-985 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-6-978


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References

  1. L. Demeio, S. Green, and L. Monchick, "Effects of velocity changing collisions on line shapes of HF in Ar," J. Chem. Phys. 102, 9160-9166 (1995). [CrossRef]
  2. R. Wehr, A. Vitcu, R. Ciurylo, F. Thibault, J. R. Drummond, and A. D. May, "Spectral line shape of the P(2) transition in CO-Ar: uncorrelated ab initio calculation," Phys. Rev. A 66, 062502 (2002).
  3. R. Wehr, R. Ciurylo, A. Vitcu, J. R. Drummond, A. D. May, and F. Thibault, "Dicke-narrowed spectral line shapes of CO in Ar: experimental results and a revised interpretation," J. Mol. Spectrosc. 235, 54-68 (2006). [CrossRef]
  4. R. Wehr, A. Vitcu, J. R. Drummond, A. D. May, and F. Thibault, "Collisional line shifting and broadening in the fundamental P-branch of CO in Ar between 214 K and 324 K," J. Mol. Spectrosc. 235, 69-76 (2006). [CrossRef]
  5. J. W. Forsman, P. M. Sinclair, P. Duggan, J. R. Drummond, and A. D. May, "A high-resolution Raman gain spectrometer for spectral line shape studies," Can. J. Phys. 69, 558-563 (1991). [CrossRef]
  6. P. Duggan, P. M. Sinclair, M. P. Le Flohic, J. W. Forsman, R. Berman, A. D. May, and J. R. Drummond, "Testing the validity of the optical diffusion coefficient: line-shape measurements of CO perturbed by N2," Phys. Rev. A 48, 2077-2083 (1993). [CrossRef] [PubMed]
  7. P. M. Sinclair, P. Duggan, R. Berman, A. D. May, and J. R. Drummond, "Line broadening, shifting, and mixing in the fundamental band of CO perturbed by N2 at 301 K," J. Mol. Specrosc. 181, 41-47 (1997). [CrossRef]
  8. A. Vitcu, R. Ciurylo, R. Wehr, J. R. Drummond, and A. D. May, "High-resolution tunable mid-infrared spectrometer based on difference-frequency generation in AgGaS2," Appl. Opt. 43, 4965-4971 (2004). [CrossRef] [PubMed]
  9. R. Berman, "Direct measurements of line mixing, line broadening, and translational line shape in the v1 + v2 Q-branch of pure CO2," Ph.D. dissertation (University of Toronto, 1998).
  10. P. M. Sinclair, "C. W. Raman gain spectroscopy: development of a high resolution spectrometer and the study of diatomic sodium," Master's thesis (University of Toronto, 1988).
  11. J. W. Forsman, "Measurements with high resolution Raman gain spectroscopy of deviations from the soft-collision model for translational motion," Ph.D. dissertation (University of Toronto, 1992).
  12. R. Wehr, "Dicke-narrowed spectral lines in carbon monoxide buffered by argon," Ph.D. dissertation (University of Toronto, 2005).

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