接近金属纳米粒子的半导体量子点中等离子体增强二次谐波的产生

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2011-06-11 DOI:10.4279/PIP.030002

Pablo M. Jais, C. Bilderling, A. Bragas

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引用次数: 11

摘要

我们报道了当非中心对称半导体CdS量子点与孤立的银纳米粒子密切接触时，光学二次谐波信号的增强。强度增强约1000。我们还发现，当入射激光频率向银等离子体激元的光谱位置调谐时，增强效应增加，证明纳米银粒子改变了非线性发射。收稿日期:2011年3月8日，收稿日期:2011年5月30日;编辑:L. Vina;评审人:R. Gordon，加拿大不列颠哥伦比亚省维多利亚大学电气与计算机工程系;DOI: 10.4279 / PIP.030002引用自:P. M. Jais, C. von Bilderling, A. V. Bragas，《物理学报》3,030002 (2011)

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Plasmon-enhanced second harmonic generation in semiconductor quantum dots close to metal nanoparticles

We report the enhancement of the optical second harmonic signal in non-centrosymmetric semiconductor CdS quantum dots, when they are placed in close contact with isolated silver nanoparticles. The intensity enhancement is about 1000. We also show that the enhancement increases when the incoming laser frequency is tuned toward the spectral position of the silver plasmon at , proving that the silver nanoparticle modifies the nonlinear emission. Received: 8 March 2011, Accepted: 30 May 2011; Edited by: L. Vina; Reviewed by: R. Gordon, Department of Electrical and Computer Engineering, University of Victoria, British Columbia, Canada; DOI: 10.4279/PIP.030002 Cite as: P. M. Jais, C. von Bilderling, A. V. Bragas, Papers in Physics 3, 030002 (2011)

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.