Birefringent reflectarray metasurface for beam engineering in infrared
Birefringent reflectarray metasurface for beam engineering in infrared
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DOI：
10.1364/ol.38.000462
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发表时间：
2013-02-15
期刊：
影响因子：
3.6
通讯作者：
Mosallaei, Hossein
中科院分区：
文献类型：
--
作者：
Farmahini-Farahani, Mohsen;Mosallaei, Hossein
展示了一种具有工程双折射行为的红外反射阵列亚表面。该阵列将入射光重新辐射成两个正交的线性偏振反射。反射阵列是由放置在接地介质隔离层顶部的矩形金属贴片纳米天线组成的。这些贴片被设计成局部地操纵入射波的相位前沿。他们调整反射相位，将表面上的相位前锋同时转换为两个正交偏振所需的相位。所提出的纳米天线准表面可以在许多光学器件中得到应用，如双折射调制器、波片、偏振器和分光器。(C)2013年美国光学学会
An infrared reflectarray metasurface with engineered birefringent behavior is demonstrated. The array reradiates incoming light into two orthogonal, linearly polarized reflections. The reflectarray is composed of rectangular metallic patch nanoantennas placed on top of a grounded dielectric stand-off layer. The patches are designed to locally manipulate the phase front of the incoming wave. They tailor the reflection phase to transform the phase front on the surface to the one desired for both orthogonal polarizations at the same time. The proposed nanoantenna metasurface can find applications in many optical devices, such as birefringent modulators, waveplates, polarizers, and splitters. (c) 2013 Optical Society of America