Non-linear excitation and correlation studies of single InGaN quantum dots

被引：0

作者：

Collins, Daniel P. ^{[1
]}

Jarjour, Anas F. ^{[1
]}

Taylor, Robert A. ^{[1
]}

Hadjipanayi, Maria ^{[1
]}

Oliver, Rachel A. ^{[2
]}

Kappers, Menno J. ^{[2
]}

Humphreys, Colin J. ^{[2
]}

Tahraoui, Abbes ^{[2
,3
]}

机构：

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

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

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

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 4 | 2009年 / 6卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

2-PHOTON ABSORPTION;

D O I：

10.1002/pssc.200880632

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The exact mechanism for non-linear sub-bandgap excitation of single InGaN quantum dots (QDs) has been investigated using interferometric autocorrelation techniques based around a near-infrared (NIR) excitation laser. We identify unambiguously the heavily favoured two-photon absorption (TPA) as being crucial in the observed background reduction for such Nitride structures and compare systematically the relative merits of both the linear (blue) and non-linear (NIR) excitation regimes on several apertures of a masked sample. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：864 / +

页数：2

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