The modes, frequencies, and populations of non-equilibrium large wave-vector TA phonons in GaAs, participating in the bottleneck in decay at low temperature, have been probed. The excess phonons were generated as a by-product of intense pulsed Nd:YAlG laser excitation of electrons from deep traps, and were probed in situ by 90 degree second-order Raman scattering of the same laser beam.
|Original language||English (US)|
|Number of pages||3|
|Journal||Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics|
|Issue number||Pt I|
|Publication status||Published - Mar 1982|
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