Abstract

The temperature, wavelength, and J dependence of the rotational Raman gain coefficient has been determined for the S-branch transitions in N₂. First, the temperature dependence (80–300 K) of the density-broadening coefficients was measured using stimulated Raman spectroscopy. Second, the wavelength dependence (250–600 nm) of the polarizability anisotropy was empirically determined by fitting to the most recent experimental data. These two results were then used to calculate the rotational Raman gain coefficients with accuracies estimated at 5%. At room temperature, the high-density limit of the steady-state gain coefficient of the strongest line, S(10), is 4.8 × 10⁻¹² cm/W for a Stokes wavelength of 568 nm.

© 1986 Optical Society of America

Wavelength dependence of the absolute Raman gain coefficient for the Q(1) transition in H₂

William K. Bischel and Mark J. Dyer
J. Opt. Soc. Am. B 3(5) 677-682 (1986)

Model of the rotational Raman gain coefficients for N₂ in the atmosphere

G. C. Herring and William K. Bischel
Appl. Opt. 26(15) 2988-2994 (1987)

Gain measurements in stimulated rotational Raman scattering in para hydrogen

E. J. Corat, Vladimir J. T. Airoldi, S. L. Scolari, and C. C. Ghizoni
Opt. Lett. 11(6) 368-370 (1986)

Measurement of Raman gain of the S(8) transition of N₂

D. Klimek, K. Leung, M. Oron, and A. Flusberg
Opt. Lett. 12(7) 495-497 (1987)

Observation of parametric gain suppression in rotational Raman transitions of N₂ and H₂

K. Leung, M. Oron, D. Klimek, R. Holmes, and A. Flusberg
Opt. Lett. 13(1) 33-35 (1988)