Ideal-lens cloaks and new cloaking strategies.
Ideal-lens cloaks and new cloaking strategies.
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DOI：
10.1364/oe.27.037327
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发表时间：
2019-12
期刊：
影响因子：
3.8
通讯作者：
Jakub Bělín;T. Tyc;M. Grunwald;S. Oxburgh;E. Cowie;Chris D. White;J. Courtial
中科院分区：
文献类型：
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作者：
Jakub Bělín;T. Tyc;M. Grunwald;S. Oxburgh;E. Cowie;Chris D. White;J. Courtial
以前[Courtial 等人，选项。 Express 26, 17872 (2018)]我们提出了理想透镜的变换光学（TO）理论，并演示了一个例子，全向透镜。在这里，我们将两种不同参数状态下的全向透镜解释为采用不同隐形策略的理想透镜斗篷：标准的“收缩斗篷”，其中物体看起来更小（理想情况下为零）和新颖的“深渊斗篷”，其中内部物理空间位置映射到外部，因此只能从某些方向可见。我们继续将两个嵌套的深渊斗篷组合成另一个新颖的全向“双深渊斗篷”。我们的工作显着扩展了隐身策略的库。
Previously [Courtial et al., Opt. Express 26, 17872 (2018)] we presented the theory of transformation optics (TO) with ideal lenses and demonstrated an example, an omnidirectional lens. Here we interpret this omnidirectional lens in two different parameter regimes as ideal-lens cloaks that employ different cloaking strategies: a standard "shrink cloak" in which objects appear smaller (ideally zero) and a novel "abyss cloak" in which interior physical-space positions are mapped to the exterior and thus are visible only from certain directions. We proceed to combine two nested abyss cloaks into another novel, omnidirectional, "bi-abyss cloak." Our work significantly extends the arsenal of cloaking strategies.