Virtual reshaping and invisibility in obstacle scattering

Details Virtual reshaping and invisibility in obstacle scattering Virtual reshaping and invisibility in obstacle scattering

2008-11-09

arxiv.org/abs/0811.1308v2

Physics

Optics

This is the latest revised version

Scientific paper

10.1088/0266-5611/25/4/045006

We consider reshaping a scattering obstacle virtually by using transformation optics in acoustic and electromagnetic scattering. Among the general virtual reshaping results, the virtual minification and virtual magnification are particularly studied. Stability estimates are derived for scattering amplitude in terms of the diameter of a small obstacle, which implies that the limiting case for minification corresponds to a perfect cloaking, i.e., the obstacle is invisible to detection.

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