Size-dependent optical nonlinearities in GaN quantum dots

被引：10

作者：

Riblet, P ^{[1
]}

Tanaka, S ^{[1
]}

Ramvall, P ^{[1
]}

Nomura, S ^{[1
]}

Aoyagi, Y ^{[1
]}

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 109卷 / 06期

关键词：

nanostructures; semiconductors; optical properties; nonlinear optics;

D O I：

10.1016/S0038-1098(98)00574-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We studied experimentally the influence of the size of GaN quantum dots on the exciton photoluminescence at 10 K under high optical excitation for which the spatial confinement was found to be a critical parameter for optical nonlinearities such as band-gap renormalization (BGR) and state-filling effects. As the dot size decreases, the BCR characteristic of bulk like dots becomes dominated by the state-filling nonlinearity. in addition, three-dimensional confinement is demonstrated by a comparison with a quantum well. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：377 / 381

页数：5

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