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arXiv 0908.4019physics.optics
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超材料的多极非线性

Multipole nonlinearity of metamaterials

Joerg Petschulat, Christoph Menzel, Arkadi Chipouline, Carsten Rockstuhl, Andreas Tuennermann, Falk Lederer, Thomas Pertsch

摘要:

我们报道了由一阶和二阶多极子引起的超材料的线性和非线性光学响应。我们的方法所依据的分析基础允许对超材料功能的新见解。为了清楚起见,我们在这里集中在一个关键的几何形状,即开口环谐振器,虽然介绍的形式主义可以适用于任意结构。我们推导出描述线性和非线性光传播的方程,特别强调二次谐波产生。这一贡献的基本目的是拉伸通用的和现有的概念来描述光在非线性介质中的传播向超材料领域。

英文摘要:

We report on the linear and nonlinear optical response of metamaterials evoked by first and second order multipoles. The analytical ground on which our approach bases permits for new insights into the functionality of metamaterials. For the sake of clarity we focus here on a key geometry, namely the split-ring resonator, although the introduced formalism can be applied to arbitrary structures. We derive the equations that describe linear and nonlinear light propagation where special emphasis is put on second harmonic generation. This contribution basically aims at stretching versatile and existing concepts to describe light propagation in nonlinear media towards the realm of metamaterials.

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