Improvement of cylindrical cloaking with the SHS lining

by: A Greenleaf, Y Kurylev, M Lassas, G Uhlmann

Opt. Express, Vol. 15, No. 20. (1 October 2007), pp. 12717-12734.

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Optical Society of America

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Abstract

We analyze the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability material parameters tend towards the singular ideal cloaking values, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B poses a challenge to the suitability of the field-averaged characterization of ε and μ. We also consider cloaking with and without the SHS (soft-and-hard surface) lining. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.

@article{citeulike:2363382, abstract = {We analyze the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability material parameters tend towards the singular ideal cloaking values, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B poses a challenge to the suitability of the field-averaged characterization of ε and μ. We also consider cloaking with and without the SHS (soft-and-hard surface) lining. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.}, author = {Greenleaf, A. and Kurylev, Y. and Lassas, M. and Uhlmann, G. }, citeulike-article-id = {2363382}, journal = {Opt. Express}, keywords = {cloaking, metamaterial}, month = {October}, number = {20}, pages = {12717--12734}, posted-at = {2008-02-11 17:27:38}, priority = {2}, publisher = {OSA}, title = {Improvement of cylindrical cloaking with the SHS lining}, url = {http://www.opticsinfobase.org/abstract.cfm?id=142023}, volume = {15}, year = {2007} }

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TY - JOUR ID - citeulike:2363382 TI - Improvement of cylindrical cloaking with the SHS lining JF - Opt. Express VL - 15 IS - 20 SP - 12717 EP - 12734 PB - OSA N2 - We analyze the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability material parameters tend towards the singular ideal cloaking values, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B poses a challenge to the suitability of the field-averaged characterization of ε and μ. We also consider cloaking with and without the SHS (soft-and-hard surface) lining. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented. KW - cloaking KW - metamaterial AU - Greenleaf, A AU - Kurylev, Y AU - Lassas, M AU - Uhlmann, G PY - 2007/10/01/ UR - http://www.opticsinfobase.org/abstract.cfm?id=142023 ER -

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