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arXiv 1605.02201physics.opticscond-mat.mes-hallcond-mat.soft
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基于电可控电磁感应透明的超材料调制器

A metamaterial modulator based on electrically controllable electromagnetically induced transparency

Yuancheng Fan, Tong Qiao, Fuli Zhang, Quanhong Fu, Jiajia Dong, Botao Kong

摘要:

电磁感应透明(Electromagnetically Induced Transparency,EIT)是一种很有前途的增强光-物质相互作用的技术,而最近在人工微结构介质中实现的量子EIT的演示大大降低了对EIT光谱实验观测的极端要求。在本文中,我们提出了电控制的电磁调制器的超材料中的EIT谱。作为可调电阻器的二极管被加载在两对导线的间隙中以感应地调谐磁共振,这通过超材料样品在EIT谱上引起显著的调制。实验测量证实了EIT谱上三个窄带中的电磁调制的预测,并且在通过超材料的透射上实现了高达31 dB的调制对比度。我们的研究结果可能有助于研究平移超材料中的主动/动力学技术,这些技术将超材料中光的流动连接起来,例如,外来的EIT,以及在工业中的实际应用。

英文摘要:

Electromagnetically induced transparency (EIT) is a promising technology for the enhancement of light-matter interactions, and recent demonstrations of the quantum EIT realized in artificial micro-structured medium have remarkably reduced the extreme requirement for experimental observation of EIT spectrum. In this paper, we propose to electrically control the EIT spectrum in a metamaterial for an electromagnetic modulator. A diode acting as a tunable resistor is loaded in the gap of two paired wires to inductively tune the magnetic resonance, which induces remarkable modulation on the EIT spectrum through the metamaterial sample. The experimental measurements confirmed that the prediction of electromagnetic modulation in three narrow bands on the EIT spectrum, and a modulation contrast of up to 31 dB was achieved on the transmission through the metamaterial. Our results may facilitate the study on active/dynamical technology in translational metamaterials, which connect extraordinary manipulations on the flow of light in metamaterials, e.g., the exotic EIT, and practical applications in industry.

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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