Abstract
We have observed oscillation in the wings of the Doppler-broadened sodium D lines when they are pumped by a cw dye laser and enclosed in an optical cavity. The oscillation is blue (red) detuned from the pump laser by the ground-state hyperfine splitting of sodium when the pump-laser frequency is in the blue (red) wing. The gain mechanism is explained on the basis of optical pumping and stimulated Raman scattering.
© 1985 Optical Society of America
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