Lossless acoustic half-bipolar cylindrical cloak with negative-index metamaterial

Yong Y. Lee; Doyeol Ahn

doi:10.7567/JJAP.57.057301

Lossless acoustic half-bipolar cylindrical cloak with negative-index metamaterial

Yong Y. Lee, Doyeol Ahn

School of Electrical and Computer Engineering

Korea Testing Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

A lossless acoustic half-bipolar cylindrical cloak that has an exposed bottom is considered. Here, we show that a cloak that includes a complementary region including a negative-index medium inside of the cloaking shell works in the illumination direction independently even in the presence of the exposed bottom of the structure. This is due to the fact that the phase velocity of the wave in the normal direction can be cancelled in the presence of a boundary containing a negative-index medium that reduces scattering significantly.

Original language	English
Article number	057301
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	57
Issue number	5
DOIs	https://doi.org/10.7567/JJAP.57.057301
State	Published - May 2018

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10.7567/JJAP.57.057301

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title = "Lossless acoustic half-bipolar cylindrical cloak with negative-index metamaterial",

abstract = "A lossless acoustic half-bipolar cylindrical cloak that has an exposed bottom is considered. Here, we show that a cloak that includes a complementary region including a negative-index medium inside of the cloaking shell works in the illumination direction independently even in the presence of the exposed bottom of the structure. This is due to the fact that the phase velocity of the wave in the normal direction can be cancelled in the presence of a boundary containing a negative-index medium that reduces scattering significantly.",

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Lossless acoustic half-bipolar cylindrical cloak with negative-index metamaterial

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