Optical Second Harmonic Generation of Single Metallic Nanoparticles Embedded in a Homogeneous Medium

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• 作者：Jrmy Butet ; Julien Duboisset ; Guillaume Bachelier ; Isabelle Russier-Antoine ; Emmanuel Benichou ; Christian Jonin ; Pierre-Franois Brevet
• 刊名：Nano Letters
• 出版年：2010
• 出版时间：May 12, 2010
• 年：2010
• 卷：10
• 期：5
• 页码：1717-1721
• 全文大小：297K
• 年卷期：v.10,no.5(May 12, 2010)
• ISSN：1530-6992

文摘

We report the optical second harmonic generation from individual 150 nm diameter gold nanoparticles dispersed in gelatin. The quadratic hyperpolarizability of the particles is determined and the input polarization dependence of the second harmonic intensity obtained. These results are found in excellent agreement with ensemble measurements and finite element simulations. These results open up new perspectives for the investigation of the nonlinear optical properties of noble metal nanoparticles.