Three-Dimensional Invisibility Cloak at Optical Wavelengths
Three-Dimensional Invisibility Cloak at Optical Wavelengths
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DOI：
10.1126/science.1186351
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发表时间：
2010-04-16
期刊：
影响因子：
56.9
通讯作者：
Wegener, Martin
中科院分区：
文献类型：
--
作者：
Ergin, Tolga;Stenger, Nicolas;Wegener, Martin
我们设计并实现了一种基于变换光学的、在光波长下工作的三维隐形斗篷结构。我们的蓝图使用木桩光子晶体和定制的聚合物填充分数来隐藏金色反射器中的凸块。我们通过直接激光写入来制造结构和控制装置，并通过同步高数值孔径、远场光学显微镜和光谱学来表征它们。演示了使用波长为 1.4 至 2.7 微米的大带宽非偏振光进行的隐身操作，视角高达 60 度。
We have designed and realized a three-dimensional invisibility-cloaking structure operating at optical wavelengths based on transformation optics. Our blueprint uses a woodpile photonic crystal with a tailored polymer filling fraction to hide a bump in a gold reflector. We fabricated structures and controls by direct laser writing and characterized them by simultaneous high-numerical-aperture, far-field optical microscopy and spectroscopy. A cloaking operation with a large bandwidth of unpolarized light from 1.4 to 2.7 micrometers in wavelength is demonstrated for viewing angles up to 60 degrees.