EXCITONS IN A SINGLE-QUANTUM-WELL WIRE - OPTICAL-RESPONSE AND APPLICATION TO THE GRATINGS

被引：2
|
作者：
DANDREA, A [1 ]
PILOZZI, L [1 ]
机构：
[1] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY
来源：
JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C5期
关键词：
D O I：
10.1051/jp4:1993581
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Variational envelope function of an exciton in a single quantum well wire (SQWW) is described in the framework of the effective mass approximation for two-band model. The SQWW considered has thickness values : L(z) < a(B), along the growth axis of the sample, and L(x) > 3a(B) for the lateral dimension (where a(B) is the Bohr radius). Exciton polarizations and optical response for SQWW and for a grating of QWWs are given. The role of the local fields on the optical response of these two different superstructures is pointed out.
引用
收藏
页码：385 / 388
页数：4
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