PHOTOACOUSTIC PRESSURE BROADENING MEASUREMENTS OF TRANSITIONS IN THE $O_{2} b^{1}{\Sigma_{8}}^{+} \leftarrow X^{3}{\Sigma_{8}}^{-}$ $BANDS^{\ast}$
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Date
1982
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Ohio State University
Abstract
High-resolution spectra of individual rotational lines in the 0-0 and 1-0 bands of oxygen (762 and 668 nm, respectively) have been measured photoacoustically. Line strengths and pressure broadening coefficients have been determined for both self broadening and foreign-gas broadening at pressures up to 3 atm. Comparison of these measurements with previous $observations^{1, 2}$ permits the calibration of the photoacoustic detector response. The importance of the modulation frequency in the absolute calibration is discussed.
Description
$^{\ast}$This research was conducted under the McDonnell Douglas Independent Research and Development program. $^{1}$D.E. Burch and D.A. Gryvnak, Appl. Opt. 8, 1493(1969). $^{2}$L.P. Giver, R.W. Boese, and J.H. Miller, J. Quant. Spectrose. Radiat. Transfer 14, 793 (1974).