Conformal cloak for waves

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Authors

CHEN Huanyang LEONHARDT Ulf TYC Tomáš

Year of publication 2011
Type Article in Periodical
Magazine / Source Physical Review A
MU Faculty or unit

Faculty of Science

Citation
Web http://pra.aps.org/abstract/PRA/v83/i5/e055801
Doi http://dx.doi.org/10.1103/PhysRevA.83.055801
Field Optics, masers and lasers
Keywords conformal map;cloaking;light waves;invisibility;quantization
Description Conformal invisibility devices are only supposed to work within the valid range of geometrical optics. Here, we show by numerical simulations and analytical arguments that for certain quantized frequencies, they are nearly perfect even in a regime that clearly violates geometrical optics. The quantization condition follows from the analogy between the Helmholtz equation and the stationary Schrödinger equation.
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