Full Control of Nanoscale Optical Transmission with a Composite Metascreen
Full Control of Nanoscale Optical Transmission with a Composite Metascreen
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DOI：
10.1103/physrevlett.110.203903
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发表时间：
2013-05-14
影响因子：
8.6
通讯作者：
Alu, Andrea
中科院分区：
文献类型：
--
作者：
Monticone, Francesco;Estakhri, Nasim Mohammadi;Alu, Andrea
通过将光学纳米电路概念应用于超表面，我们提出了一种在深亚波长范围内局部控制光传输的有效途径。这一概念实现了发射阵列的光学等效性，其用途已被证明可以在亚波长距离上以前所未有的效率进行光弯曲和聚焦，这对于纳米光学应用具有至关重要的优势。这些发现可能会导致共形和硅兼容衬底上的光传输操纵和纳米级光信号处理方面的巨大改进。
By applying the optical nanocircuit concepts to metasurfaces, we propose an effective route to locally control light transmission over a deeply subwavelength scale. This concept realizes the optical equivalent of a transmit-array, whose use is demonstrated for light bending and focusing with unprecedented efficiency over a subwavelength distance, with crucial benefits for nano-optics applications. These findings may lead to large improvements in the manipulation of optical transmission and processing of nanoscale optical signals over conformal and Si-compatible substrates.