Abstract

It is shown how, under certain circumstances, optically pumping an R-branch transition at high J number in a molecular gas may result in a situation in which over half of the particles are in the excited vibrational manifold. This can lead to increased gain in transitions to intermediate-lying states and increased fluorescence signal in laser-induced-fluorescence experiments. In addition, gain can also be obtained on pumping in band transitions that have frequencies smaller than the pump-laser frequency. Such an arrangement can be employed to obtain a wavelength shift.

© 1979 Optical Society of America

Optoacoustic studies of two-frequency infrared-laser pumping of SF₆

G. P. Quigley
Opt. Lett. 4(3) 84-86 (1979)

Two-level model for near saturated fluorescence in diatomic molecules

R. P. Lucht and N. M. Laurendeau
Appl. Opt. 18(6) 856-861 (1979)

CF₄ laser oscillator–amplifier measurements: small signal gain and self-absorption

Roger C. Eckhardt, Ronald Hinsley, Martin Piltch, and Stephen Rockwood
Opt. Lett. 4(4) 112-114 (1979)

Synchronous, mode-locked pumping of gas lasers

S. H. Lee, S. J. Petuchowski, A. T. Rosenberger, and T. A. DeTemple
Opt. Lett. 4(1) 6-8 (1979)

Doppler-free two-photon optogalvanic spectroscopy

J. E. M. Goldsmith, A. I. Ferguson, J. E. Lawler, and A. L. Schawlow
Opt. Lett. 4(8) 230-232 (1979)