Effect of the Dielectric Core and Embedding Medium on the Second Harmonic Generation from Plasmonic Nanoshells: Tunability and Sensing

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• 作者：J茅r茅my Butet ; Isabelle Russier-Antoine ; Christian Jonin ; No毛lle Lascoux ; Emmanuel Benichou ; Pierre-Fran莽ois Brevet
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：January 17, 2013
• 年：2013
• 卷：117
• 期：2
• 页码：1172-1177
• 全文大小：291K
• 年卷期：v.117,no.2(January 17, 2013)
• ISSN：1932-7455

文摘

Using Mie theory extended to the second harmonic generation from gold nanoshells, we have investigated the effect of the dielectric constant of the dielectric core and embedding medium. As the linear extinction, the SHG cross section is found to be tunable through a change of the core dielectric constant. The impact of the dielectric constant of the embedding medium is also addressed, and practical applications like sensing are discussed. Finally, we show that sensing properties can be optimized by modifying the core dielectric constant.