Gc. Herring et Bw. South, PRESSURE BROADENING OF VIBRATIONAL RAMAN LINES IN N-2 AT TEMPERATURESBELOW 300-K, Journal of quantitative spectroscopy & radiative transfer, 52(6), 1994, pp. 835-840
Using quasi-cw stimulated Raman gain spectroscopy, the pressure broade
ning coefficients for the N-2 vibrational Q-branch transitions have be
en measured over the temperature range 113-297 K for the rotational co
mponents J = 4, 6, 8, 10, and 12. The experimental results are fit to
a simple power law to give an empirical formula for the temperature de
pendence of the pressure broadening over the 100-300 K range. These re
sults are also compared to previously published scaling laws that are
based on collision induced rotational transition rates.