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Experimental Line Parameters of the Oxygen A-Band Using Frequency-Stabilized Cavity Ring-Down Spectroscopy

Published

Author(s)

D J. Robichaud, Joseph T. Hodges, Linda R. Brown, D Lisak, Piotr Maslowski, Charles E. Miller

Abstract

Line intensities, self- and air-broadened linewidths, pressure-induced shifts, and collisional narrowing coefficients were measured from 18 <= J' <= 32 in the P branch of the O2 A-band (12,975 13,055 cm^(-1)). Spectra were recorded using the frequency-stabilized cavity ring-down spectrometer located at NIST, Gaithersburg, MD with a spectral resolution < 0.0001 cm^(-1) and noise-equivalent absorption coefficient of 6 10^(-10) cm^(-1) Hz^(-1/2). The line intensities determined in the present work are 1% lower than the values in current spectroscopic databases. However, we measure broadening coefficients that are up to 20% lower than the extrapolated values given in HITRAN 2004. We discuss the implications of our results for accurate remote sensing of surface pressure and photon pathlength distributions.
Citation
Journal of Molecular Spectroscopy
Volume
248

Keywords

A-Band, absorption spectroscopy, cavity ring-down, oxygen, remote sensing

Citation

Robichaud, D. , Hodges, J. , Brown, L. , Lisak, D. , Maslowski, P. and Miller, C. (2008), Experimental Line Parameters of the Oxygen A-Band Using Frequency-Stabilized Cavity Ring-Down Spectroscopy, Journal of Molecular Spectroscopy (Accessed July 23, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created December 31, 2007, Updated October 12, 2021