Show simple item record Urzhumov, Yaroslav A. Smith, David R. 2012-01-18T14:41:09Z 2012-01-18T14:41:09Z 2012-01-18
dc.description.abstract Recently, a path towards macroscopic, transparent optical cloaking devices that may conceal objects spanning millions of wavelengths has been proposed [1]. Such devices are designed using transformation optics (TO) [2,3]. In this paper, we offer further analysis and improvements to the concept using the method of geometrical optics extended to complex photonic media with an arbitrary dispersion relation. A technique for solving the highly nonlinear partial differential equation of the eikonal using the finite element method is presented. Aberra-tions caused by the non-quadratic part of the dispersion relation are demonstrated quantitatively in a numerical experiment. An analytical argument based on the scalability of the eikonal phase is presented, which points to-wards a solution that removes this type of aberration in each order of the k-perturbation theory, thus restoring the perfect cloaking solution. en_US
dc.language.iso en_US en_US
dc.title Towards macroscopic optical invisibility devices: geometrical optics of complex materials en_US
dc.type Article en_US
duke.description.endpage 996 en_US
duke.description.startpage 994 en_US

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