Saturated near-resonant refractive optical nonlinearity in CdTe quantum dots

被引：26

作者：

Dancus, I. ^{[1
]}

Vlad, V. I. ^{[1
]}

Petris, A. ^{[1
]}

Gaponik, N. ^{[2
]}

Lesnyak, V. ^{[2
]}

Eychmueller, A. ^{[2
]}

机构：

[1] Natl Inst Lasers Plasma & Radiat Phys, Laser Dept, Bucharest 077125, Romania

[2] Tech Univ Dresden, D-01062 Dresden, Germany

来源：

OPTICS LETTERS | 2010年 / 35卷 / 07期

关键词：

NANOCRYSTALS;

D O I：

10.1364/OL.35.001079

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we report on an experimental investigation of the nonlinear optical properties near the first electronic resonance of thiol-capped CdTe quantum dots (QDs) being in the strong confinement regime. Using a cw laser excitation in a Z-scan experimental setup, we show the presence of saturated Kerr-type nonlinear optical properties of the QDs, at low intensity levels. The large optical nonlinearity and the control of the linear and nonlinear optical properties by the size of the QDs are of special interest for applications in integrated nanophotonic devices. (C) 2010 Optical Society of America

引用

页码：1079 / 1081

页数：3

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