THEORY OF EXCITON-POPULATION-INDUCED NONLINEAR ABSORPTION IN LARGE MICROCRYSTALLITES

被引:27
作者
BELLEGUIE, L
BANYAI, L
机构
[1] Institut de Physique et Chimie des Materiaux de Strasbourg, Groupe d'Optique Nonlineaire et d'Optoelectronique, 67084 Strasbourg Cedex
来源
PHYSICAL REVIEW B | 1991年 / 44卷 / 16期
关键词
D O I
10.1103/PhysRevB.44.8785
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A model of excitons in large semiconductor quantum dots (R/a(B) >> 1), together with ideas of Efros and Efros on exciton-mass-center quantization, is used to describe many-exciton states in materials with large exciton binding energy. In the light of this theory the recent pump-probe experiments of Gilliot et al. on CuCl dots are interpreted as nonlinear absorption induced by an average population of a few excitons per dot.
引用
收藏
页码:8785 / 8791
页数:7
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