Cylindrical cloaking at oblique incidence with optimized finite multilayer parameters

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• 来源
  《Optics Letters》 |2010年第16期|p.2681-2683|共3页
• 作者

  Baile Zhang* and Bae-Ian Wu;

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  We propose multilayer cylindrical invisibility cloaks that are optimized for oblique incidences through a combina-tion of analytic formalism of scattering and genetic optimization. We show that by using only four layers of homo-geneous and anisotropic metamaterials without large values of constitutive parameters, the scattering for obliqueincidences can be reduced by 2 orders. Although the optimization is done at a single incident angle, the cloakprovides reduced scattering over a large range of incident angles. © 2010 Optical Society of America;

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