Liquid-Crystal-Based Electrically Tuned Electromagnetically Induced Transparency Metasurface Switch.
Liquid-Crystal-Based Electrically Tuned Electromagnetically Induced Transparency Metasurface Switch.
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基于液晶的电调谐电磁感应透明超表面开关
DOI：
10.1038/s41598-017-17612-7
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发表时间：
2017-12-12
影响因子：
4.6
通讯作者：
Zhang J
中科院分区：
文献类型：
--
作者：
Su H;Wang H;Zhao H;Xue T;Zhang J
本文设计了一种实现电磁感应透明（EIT）两种不同响应之间相互转换的结构，并通过仿真实现。利用结构的各向异性和辐射元件与暗元件之间的耦合，在正交偏振入射光照明之间具有超过85%的调制深度的超表面开关被证明。“开”和“关”状态之间的关键模式转换是通过用成熟技术预对准的液晶层电改变敷料光偏振来实现的，而不改变入射光，并且观察到从类EIT光谱到强光谱下降的预期和可逆的转变。用这种简单的方法制作的EIT开关中的调制是一种很有前途的控制摸索速度延迟的工具。
In this study, a structure to realize a switchover between two different responses of electromagnetically induced transparency (EIT) was designed and implemented by simulation. Taking advantage of the anisotropy in the structure and the coupling between the radiative and dark elements, a metasurface switch with modulation depth of over 85% between orthogonal polarization incident light illuminations was demonstrated. The key mode switchover between the “on” and “off” states was achieved by electrically changing the dressing light polarization with a liquid crystals layer pre-aligned with a mature technology, without changing the incident light and an expected and reversible transition from an EIT-like spectrum to a strong spectral dip was observed. The modulation in the EIT switch fabricated with the proposed straightforward approach is a promising tool to control the groping velocity delay.
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影响因子：
10.8
作者：
Lin, Jiao;Genevet, Patrice;Capasso, Federico
通讯作者：
Capasso, Federico
影响因子：
16.6
作者：
Canty, A. J.;Huang, L.;De Paola, V.
通讯作者：
De Paola, V.
影响因子：
4
作者：
Komar, Andrei;Fang, Zheng;Neshev, Dragomir N.
通讯作者：
Neshev, Dragomir N.
影响因子：
8.6
作者：
Papasimakis, N.;Fedotov, V. A.;Prosvirnin, S. L.
通讯作者：
Prosvirnin, S. L.
影响因子：
17.1
作者：
Buchnev, Oleksandr;Podoliak, Nina;Fedotov, Vassili A.
通讯作者：
Fedotov, Vassili A.