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Type: Artigo de periódico
Title: Production and optical properties of steady-state photoinjected plasmas in quantum wires
Author: Hassan, SA
Vasconcellos, AR
Luzzi, R
Abstract: We describe the production and the optical properties of the non-equilibrium photoinjected plasma in semiconductor quantum wires under continuous UV-light illumination. The wavenumber-dependent dynamic dielectric function of this system is derived and the Raman scattering cross-section calculated. From the latter we identify the contributions from different types of elementary excitations. They consist of, besides the single-particle excitations, two types of collective oscillations: an upper one, consisting of an intrasubband-like plasmon and a lower one, identified as an acoustic-like plasmon. The dependence of both on the non-equilibrium (dissipative) macroscopic state of the system is evidenced and discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Solid State Communications. Pergamon-elsevier Science Ltd, v. 106, n. 5, n. 253, n. 257, 1998.
Rights: fechado
Identifier DOI: 10.1016/S0038-1098(98)00045-3
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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