Abstract
Intraminiband absorption of light by electrons in a quantum superlattice in a quantizing electric field is investigated theoretically taking into account the electron-phonon interaction. It is assumed that the interaction with optical dispersion-free phonons makes the main contribution to electron scattering. It is shown that the point ω=ω 0 (ω is the light frequency, and ω 0 is the optical phonon frequency) conditionally divides the ω dependence of the absorption into two parts: ω<ω 0, the region of exponentially weak absorption and ω>ω 0, the region of “strong” absorption. An electric field shifts the region of strong absorption in the red direction of the spectrum.
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Fiz. Tekh. Poluprovodn. 33, 1355–1358 (November 1999)
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Zav’yalov, D.V., Kryuchkov, S.V. Absorption of a strong electromagnetic wave by electrons in a superlattice in a quantizing electric field. Semiconductors 33, 1225–1228 (1999). https://doi.org/10.1134/1.1187854
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DOI: https://doi.org/10.1134/1.1187854