Optical properties of Ga1-xInxAs/GaAs(001) quantum well superlattices:: Exciton and polariton dispersion curves

被引：0
|
作者：
Tomassini, N [1 ]
D'Andrea, A [1 ]
Pilozzi, L [1 ]
Schiumarini, D [1 ]
机构：
[1] CNR, Ist Metodol Inogan & Plasmi, I-00016 Monterotondo, Italy
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 1, NO 6 | 2004年 / 1卷 / 06期
关键词：
D O I：
10.1002/pssc.200304077
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Wannier exciton wavefunctions and energies have been computed in superlattices of strained Ga1-xInxAs/GaAs(001) quantum wells (SLQWs) using Luttinger Hamiltonian and accurate variational envelope functions. Exciton dispersion curves of the SLQWs are then obtained by computing exciton energies for different K-points of the corresponding first Brillouin zone. Photon dispersion curves, due to the background dielectric constant modulation, and the polariton dispersion curves have been computed in the semiclassical self-consistent framework. The results are discussed for the case of exciton energies far from the photonic gaps. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码：1403 / 1409
页数：7
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