Abstract
A mechanism is described which leads to the formation of a nonequilibrium distribution of two-dimensional electrons on account of the effect of the electric field of radiation on the interaction of the electrons with a phonon thermostat in the absence of absorption. An analysis is made of the case of a nonresonant, transversely polarized pump, where the intersubband transitions and Drude absorption of the radiation are very weak but the probabilities of transitions involving the participation of phonons do not satisfy the principle of detailed balance. The character of the nonequilibrium distribution of highly degenerate electrons is discussed and their effective temperature is found.
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Pis’ma Zh. Éksp. Teor. Fiz. 68, No. 1, 44–49 (10 July 1998)