Metamaterials with Tailored Nonlinear Optical Response
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- 作者：Hannu Husu ; Roope Siikanen ; Jouni M盲kitalo ; Joonas Lehtolahti ; Janne Laukkanen ; Markku Kuittinen ; Martti Kauranen
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：February 8, 2012
- 年：2012
- 卷：12
- 期：2
- 页码：673-677
- 全文大小：267K
- 年卷期：v.12,no.2(February 8, 2012)
- ISSN：1530-6992
文摘
We demonstrate that the second-order nonlinear optical response of noncentrosymmetric metal nanoparticles (metamolecules) can be efficiently controlled by their mutual ordering in an array. Two samples with minor change in ordering have nonlinear responses differing by a factor of up to 50. The results arise from polarization-dependent plasmonic resonances modified by long-range coupling associated with metamolecular ordering. The approach opens new ways for tailoring the nonlinear responses of metamaterials and their tensorial properties.