OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 28, Iss. 18 — Sep. 15, 1989
  • pp: 3979–3984

Line-of-sight absorption measurements of high temperature gases with thermal and concentration boundary layers

Xiang Ouyang and Philip L. Varghese  »View Author Affiliations

Applied Optics, Vol. 28, Issue 18, pp. 3979-3984 (1989)

View Full Text Article

Enhanced HTML    Acrobat PDF (736 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



The effect of thermal and concentration boundary layers on experimental data must be well understood for a successful diagnostic measurement of quasi-uniform high-temperature gases using line-of-sight absorption spectroscopy. In this paper, an energy–temperature curve is proposed to assist in selection of candidate absorption lines. Two techniques, the effective absorption path length method and the direct curve–fit method, are proposed to extract absolute concentrations from absorption data obtained in the presence of boundary layers.

© 1989 Optical Society of America

Original Manuscript: February 28, 1989
Published: September 15, 1989

Xiang Ouyang and Philip L. Varghese, "Line-of-sight absorption measurements of high temperature gases with thermal and concentration boundary layers," Appl. Opt. 28, 3979-3984 (1989)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. X. Ouyang, P. L. Varghese, “A Reliable and Efficient Program for Fitting Galatry and Voigt Profiles to Spectral Data on Multiple Lines,” Appl. Opt, 28, 1538–1545 (1989). [CrossRef] [PubMed]
  2. X. Ouyang, P. L. Varghese, D. S. Cline, “Simultaneous Determination of Temperature and Species Concentrations of High-Temperature Gases Using Tunable Laser Absorption Spectroscopy,” in Proceedings of the Fourth International Science Conference, Atlanta, Oct. 1988.
  3. R. K. Hanson, P. K. Falcone, “Temperature Measurement Technique for High-Temperature Gases Using a Tunable Diode Laser,” Appl. Opt. 17, 2477–2480 (1978). [CrossRef] [PubMed]
  4. P. K. Falcone, Absorption Spectroscopy of Combustion Gases Using a Tunable Diode Laser, HTGL Report No. 121 (Stanford U., 1981).
  5. S. M. Schoenung, R. K. Hanson, “CO and Temperature Measurements in a Flat Flame by Laser Absorption Spectroscopy and Probe Techniques,” Combust. Sci. Technol. 24, 227–237 (1981). [CrossRef]
  6. S. S. Penner, Quantitative Molecular Spectroscopy and Radiative Transfer (Addison-Wesley, Reading, MA, 1959).
  7. P. L. Varghese, R. K. Hanson, “Collisional Narrowing Effects on Spectral Line Shapes Measured at High Resolution,” Appl. Opt. 23, 2376–2385 (1984). [CrossRef] [PubMed]
  8. J. Humlicek, “An Efficient Method for Evaluation of the Complex Probability Function: the Voigt Function and its Derivatives,” J. Quant. Spectroc. Radiat. Transfer 21, 309–313 (1979). [CrossRef]
  9. S. A. Gearhart, M. E. Thomas, “Evaluation of a Temperature Remote Sensing Technique,” Appl. Opt. 27, 3630–3637 (1988). [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.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited