Theoretical model of lossy acoustic bipolar cylindrical cloak with negative index metamaterial

Yong Y. Lee; Doyeol Ahn

doi:10.7567/JJAP.56.097302

Theoretical model of lossy acoustic 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

While, it was shown that for the lossless acoustic cloak the illumination direction independent cloaking can be achieved by employing the structure with compressed geometry and complementary media, the effect of the material loss have not been fully explored yet. Here, we show that realistic cloaking materials with moderate loss still works when complementary media is introduced but with the attenuated back scattering waves.

Original language	English
Article number	097302
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	56
Issue number	9
DOIs	https://doi.org/10.7567/JJAP.56.097302
State	Published - 2017

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abstract = "While, it was shown that for the lossless acoustic cloak the illumination direction independent cloaking can be achieved by employing the structure with compressed geometry and complementary media, the effect of the material loss have not been fully explored yet. Here, we show that realistic cloaking materials with moderate loss still works when complementary media is introduced but with the attenuated back scattering waves.",

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AB - While, it was shown that for the lossless acoustic cloak the illumination direction independent cloaking can be achieved by employing the structure with compressed geometry and complementary media, the effect of the material loss have not been fully explored yet. Here, we show that realistic cloaking materials with moderate loss still works when complementary media is introduced but with the attenuated back scattering waves.

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Theoretical model of lossy acoustic bipolar cylindrical cloak with negative index metamaterial

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