M. G. Gangardt, A. Z. Grasyuk, I. G. Zubarev, “Stimulated thermal and Mandelstam–Brillouin scattering of light in liquid nitrogen and oxygen”, Kvantovaya Elektronika, 1971, Number 6,Pages <nobr>118

Brief Communications

Stimulated thermal and Mandelstam–Brillouin scattering of light in liquid nitrogen and oxygen

M. G. Gangardt, A. Z. Grasyuk, I. G. Zubarev

Abstract: Experiments on liquid nitrogen and oxygen revealed stimulated scattering of the Raman, Mandelstam–Brillouin, and thermal type. The thermal scattering was associated with the absorption of the exciting light. The efficiency of conversion in the thermal and Mandelstam–Brillouin scattering reached 30%. The pumping source was a ruby laser producing pulses of 0.5 μsec duration, which was considerably longer than the relaxation times of all types of scattering. Spectral measurements demonstrated that, within the experimental error of 5 · 10^–3 cm^–1, the thermal scattering line was not shifted with respect to the line of the exciting light.

UDC: 621.378.325

PACS: 42.65.Es

Received: 31.05.1971