Reflection-less device allows electromagnetic warp drive

Details Reflection-less device allows electromagnetic warp drive Reflection-less device allows electromagnetic warp drive

2010-12-28

arxiv.org/abs/1012.5697v1

Physics

Optics

8 pages, 7 figures

Scientific paper

One of the striking properties of artificially structured materials is the negative refraction, an optical feature that known natural materials do not exhibit. Here, we propose a simple design, composed of two parallel layers of materials with different refraction indices $n_1=-n_2$, that constructs perfect reflection-less devices. The electromagnetic waves can tunnel from one layer to the other, a feature that resembles a truncation of the physical space leading to an electromagnetic warp drive. Since the refractive indices do not require any large values, this method demonstrates for the first time the practical feasibility of guiding electromagnetic fields in complete absence of reflection phenomena and without degradation of transmission efficiency at all.

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