All-Dielectric Self-Cloaked Structures,ACS Photonics

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All-Dielectric Self-Cloaked Structures
ACS Photonics ( IF 6.5 ) Pub Date : 2018-03-17 00:00:00 , DOI: 10.1021/acsphotonics.7b01608
Z. Hayran ₁ , H. Kurt ₁ , R. Herrero ₂ , M. Botey ₂ , K. Staliunas ₂ , K. Staliunas ₃

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A general procedure to design objects that are intrinsically invisible (without the necessity of an external cloak) has not been demonstrated so far. Here we propose a flexible method to design such self-cloaked objects by uncoupling the scattered waves from the incident radiation via judiciously manipulating the scattering potential of the object. We show that such a procedure is able to yield optical invisibility for any arbitrarily shaped object within any specified frequency bandwidth by simply employing isotropic nonmagnetic dielectric materials, without the usage of loss or gain material. The validity of the design principle has been verified by direct experimental observations of the spatial electric field profiles and scattering patterns at the microwave regime. Our self-cloaking strategy may have profound implications especially in noninvasive probing, cloaked sensor applications, and scattering-free non-Hermitian optics based systems.

中文翻译：

全介电自掩盖结构

到目前为止，尚未证明设计本质上不可见的对象（无需外部披风）的一般过程。在这里，我们提出了一种灵活的方法，通过明智地操纵物体的散射电位，通过将散射波与入射辐射解耦，来设计此类自掩蔽物体。我们表明，通过简单地使用各向同性非磁性介电材料，而无需使用损耗或增益材料，这样的程序能够在任何指定的频率带宽内对任何形状的物体产生光学不可见性。设计原理的有效性已通过对微波区域的空间电场分布和散射模式的直接实验观察得到了验证。

更新日期：2018-03-17

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