Direct visualization of optical frequency invisibility cloak based on silicon nanorod array
Direct visualization of optical frequency invisibility cloak based on silicon nanorod array
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DOI：
10.1364/oe.17.012922
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发表时间：
2009-07-20
期刊：
影响因子：
3.8
通讯作者：
Park, W.
中科院分区：
文献类型：
--
作者：
Lee, J. H.;Blair, J.;Park, W.
最近有人提出了一种新的隐形斗篷，可以在高反射镜前隐藏物体。这种斗篷只需要适度的光学常数和最小的各向异性，因此可以通过使用非谐振介质材料来实现，使其成为光学频率操作的理想系统。我们使用电子束光刻技术制造的硅纳米棒阵列来实现这种斗篷。然后，我们使用近场光学显微镜监测设备内部的光传播，直接可视化隐形效果。(C) 2009年美国光学学会
A new invisibility cloak was recently proposed for hiding objects in front of a highly reflecting mirror. This cloak requires only modest values of optical constants with minimal anisotropy and thus can be implemented by using non-resonant dielectric materials, making it an ideal system for optical frequency operation. We implemented the cloak using an array of silicon nanorods fabricated by electron-beam lithography. We then directly visualized the cloaking effect by monitoring the light propagation inside the device using the near-field optical microscopy. (C) 2009 Optical Society of America