Introduction


The Blanket Effect is intended for others to learn about weather modification and its related subjects in an easy to understand way. Started in 2005, this blog is a work in progress as the technology advances

December 13, 2007

How To Hide in Plain Sight

(note: all images and text from seas.upenn.edu)

Metamaterial and Plasmonic Cloaking




Our seminal proposal for the use of plasmonic materials and/or metamaterials to cloak dielectric or metallic objects relies on a scattering cancellation technique, based the negative local polarizability of cloaks with low electric permittivity.

This cloaking technique is relatively robust to changes in the design parameters, geometry and frequency of operation and we have recently extended it to collections of particles, systems of relatively larger size and multi-frequency operation.

Applications for camouflaging and non-invasive probing and sensing may be foreseen, spanning various applications in medicine, biology, defense and telecommunications. (image right: A plane wave traveling unperturbed through a system of four cloaked impenetrable particles)

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