Stimulated Brillouin and Raman Scattering in Quartz at 2.1° to 293° Kelvin

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Science  09 Dec 1966:
Vol. 154, Issue 3754, pp. 1319-1320
DOI: 10.1126/science.154.3754.1319


Stimulated Brillouin shifts observed at 2.1°K in quartz are the same as those observed at 293°K. No extreme nonlinear behavior is observed. Recent anomalous results reported by Russian workers are shown to be due to the very strong stimulated Raman scattering that sets in at low temperatures.