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arXiv 0907.0888physics.optics
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具有增益的异向介质的自洽计算

Self-consistent calculation of metamaterials with gain

A. Fang, Th. Koschny, M. Wegener, C. M. Soukoulis

摘要:

我们提出了一个计算方案,允许自洽处理的色散金属光子超材料耦合到增益材料纳入纳米结构。增益由一个通用的四电平系统描述。为了补偿超材料的损耗,存在一个临界泵浦速率。非线性的出现是由于增益损耗超过某一临界强度的测试领域。透射,反射和吸收数据,以及检索到的有效参数的晶格谐振方柱嵌入层的增益材料和开口环谐振器与增益材料嵌入到间隙中。

英文摘要:

We present a computational scheme allowing for a self-consistent treatment of a dispersive metallic photonic metamaterial coupled to a gain material incorporated into the nanostructure. The gain is described by a generic four-level system. A critical pumping rate exists for compensating the loss of the metamaterial. Nonlinearities arise due to gain depletion beyond a certain critical strength of a test field. Transmission, reflection, and absorption data as well as the retrieved effective parameters are presented for a lattice of resonant square cylinders embedded in layers of gain material and split ring resonators with gain material embedded into the gaps.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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