Ag nanoprism metamaterial based tunable plasmonic logic gate

Ag nanoprism metamaterial based tunable plasmonic logic gate
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基于银纳米棱柱超材料的可调谐等离子体逻辑门

DOI:
10.1088/1361-6463/aa8af3
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发表时间:
2017-10
影响因子:
3.4
通讯作者:
Sun Xiudong
Sun Xiudong
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yang Hanning;Owiti Edgar;Li Siren;Pei Yanbo;Shi Hongyan;Sun Xiudong

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本文提出并研究了一种由不对称排列的银纳米棱镜组成的超材料。该超材料表现出极化相关的PIT效应。y轴周期长度小于400nm的超材料表现出两个可调的透射衰减。当周期增加到400nm以上时,材料的透射率随偏振态的变化呈现出三个可调的衰减。通过选择不同波长的入射光,这种超材料可以用作等离子体布尔逻辑门。通过控制超材料中银纳米棱镜的圆角半径,可以调节等离子体器件的工作波长。这些结果为开发极化相关的可调谐等离子体信息处理器件提供了巨大的潜力。
A metamaterial comprised of asymmetrically arranged Ag nanoprisms has been proposed and investigated in this paper. The metamaterial shows a polarization dependent PIT effect. The metamaterial with its periodic length along a y-axis less than 400 nm shows two tunable transmission dips. When the periodicity is increased above 400 nm, the metamaterial shows three adjustable transmission dips against the polarization state. By choosing different wavelengths of incident light, the metamaterial can be used as plasmonic Boolean logic gates. The working wavelengths of these plasmonic devices can then be adjusted by controlling the fillet radius of Ag nanoprism in metamaterial. These results offer great potential in developing polarization dependent tunable plasmonic information processing devices.
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