Infrared carpet cloak designed with uniform silicon grating structure

Details Infrared carpet cloak designed with uniform silicon grating structure Infrared carpet cloak designed with uniform silicon grating structure

2009-10-22

arxiv.org/abs/0910.4248v1

Physics

Optics

11 pages, 4 figures

Scientific paper

Through a particularly chosen coordinate transformation, we propose an optical carpet cloak that only requires homogeneous anisotropic dielectric material. The proposed cloak could be easily imitated and realized by alternative layers of isotropic dielectrics. To demonstrate the cloaking performance, we have designed a two-dimensional version that a uniform silicon grating structure fabricated on a silicon-on-insulator wafer could work as an infrared carpet cloak. The cloak has been validated through full wave electromagnetic simulations, and the non-resonance feature also enables a broadband cloaking for wavelengths ranging from 1372 to 2000 nm.

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