OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 22, Iss. 13 — Jul. 1, 1983
  • pp: 1980–1985

Spatially resolved tunable diode-laser absorption measurements of CO using optical Stark shifting

K. Knapp and R. K. Hanson  »View Author Affiliations


Applied Optics, Vol. 22, Issue 13, pp. 1980-1985 (1983)
http://dx.doi.org/10.1364/AO.22.001980


View Full Text Article

Enhanced HTML    Acrobat PDF (735 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A tunable diode laser has been applied in optical Stark-modulated absorption spectroscopy to provide spatially resolved concentration measurements of CO. A cw IR probe beam from the diode laser was crossed with a nonresonant high-intensity beam from a Nd:YAG laser to generate a Stark-induced change in absorption in the crossing volume. The optical Stark-modulated absorption spectra were calculated showing the influence of experimental parameters including partial pressure of CO, total absorption path length, and intensity of the perturbing beam. The technique was demonstrated in a premixed atmospheric CH4–air flame and in a room temperature absorption cell, and good agreement was found between experiment and theoretical calculations. Thus far a spatial resolution of 0.5 cm has been achieved for time-averaged measurements of CO flame mole fractions of a few percent. Further improvements in the system should enable measurements of CO levels approaching 0.1% in flames with spatial resolution in the mm range and temporal resolution of 10 nsec.

© 1983 Optical Society of America

History
Original Manuscript: November 5, 1982
Published: July 1, 1983

Citation
K. Knapp and R. K. Hanson, "Spatially resolved tunable diode-laser absorption measurements of CO using optical Stark shifting," Appl. Opt. 22, 1980-1985 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-13-1980


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. R. K. Hanson, P. A. Kuntz, C. H. Kruger, Appl. Opt. 16, 2045 (1977). [CrossRef] [PubMed]
  2. S. M. Schoenung, R. K. Hanson, Combust. Sci. Technol. 24, 227 (1981). [CrossRef]
  3. P. K. Falcone, R. K. Hanson, C. H. Kruger, J. Quant. Spectrosc. Radiat. Transfer 29, 205 (1983). [CrossRef]
  4. R. K. Hanson, P. K. Falcone, Appl. Opt. 17, 2477 (1978). [CrossRef] [PubMed]
  5. R. K. Hanson, Appl. Opt. 19, 482 (1980). [CrossRef] [PubMed]
  6. S. M. Schoenung, R. K. Hanson, Appl. Opt. 21, 1767 (1982). [CrossRef] [PubMed]
  7. S. M. Schoenung, R. K. Hanson, in Nineteenth Symposium (International) on Combustion, (Combustion Institute, Pittsburgh, 1983), p. 449.
  8. P. L. Varghese, R. K. Hanson, J. Quant. Spectrosc. Radiat. Transfer 26, 339 (1981). [CrossRef]
  9. L. A. Rahn, R. L. Farrow, M. L. Koszykowski, P. L. Mattern, Phys. Rev. Lett. 45, 620 (1980). [CrossRef]
  10. R. L. Farrow, L. A. Rahn, Opt. Lett. 6, 108 (1981). [CrossRef] [PubMed]
  11. C. H. Townes, A. Schawlow, Microwave Spectroscopy (McGraw-Hill, New York1955).
  12. R. L. Farrow, Appl. Opt. 21, 4183 (1982). [CrossRef] [PubMed]
  13. A. M. Bonch-Bruevich, V. A. Khodovoi, Sov. Phys. Usp. 10, 637 (1968). [CrossRef]
  14. J. E. M. Goldsmith, R. L. Farrow, Opt. Lett. 7, 215 (1982). [CrossRef] [PubMed]
  15. H.-J. Hartmann, A. Laubereau, Appl. Opt. 20, 4259 (1981). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited