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摘要
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Toward the goal of achieving broadband and omnidirectional invisibility, we propose a method for practical invisibility cloaking. We call this digital cloaking, where space, angle, spectrum, and phase are discretized. Experimentally, we demonstrate a two-dimensional (2D) planar, ray optics, digital cloak by using lenticular lenses, similar to integral imaging for three-dimensional (3D) displays. Theoretically, this can be extended to a good approximation of an ideal 3D cloak. With continuing improvements in commercial digital technology, the resolution limitations of a digital cloak can be minimized. (C) 2016 Optical Society of America
Keyword:
OPTICS
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