Two-photon autocorrelation measurements on a single InGaN/GaN quantum dot

被引：9

作者：

Collins, Daniel ^{[1
]}

Jarjour, Anas ^{[1
]}

Hadjipanayi, Maria ^{[1
]}

Taylor, Robert ^{[1
]}

Oliver, Rachel ^{[2
]}

Kappers, Menno ^{[2
]}

Humphreys, Colin ^{[2
]}

Tahraoui, Abbes ^{[3
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[3] Univ Sheffield, Dept Elect & Elect Engn, Natl Ctr Technol 3 5, Sheffield S1 3JD, S Yorkshire, England

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

ABSORPTION;

D O I：

10.1088/0957-4484/20/24/245702

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on the use of interferometric autocorrelation measurements to investigate the non-linear absorption processes evident in single InGaN/GaN quantum dots. The near quadratic excitation intensity dependence of the photoluminescence signal in conjunction with the asymmetric collinear autocorrelation trace unambiguously confirms the process as being one involving two photons via an intermediate virtual state. These results highlight the inherently non-linear optical properties of these structures.

引用

页数：4

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