Open AccessHomogenous isotropic invisible cloak based on geometrical optics
Author(s) -
Jingbo Sun,
Ji Zhou,
Lei Kang
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.017768
Subject(s) - cloak , cloaking , optics , transformation optics , isotropy , geometrical optics , metamaterial , coordinate system , polarization (electrochemistry) , physics , refractive index , scattering , geometry , chemistry , mathematics
Invisible cloak derived from the coordinate transformation requires its constitutive material to be anisotropic. In this work, we present a cloak of graded-index isotropic material based on the geometrical optics theory. The cloak is realized by concentric multilayered structure with designed refractive index to achieve the low-scattering and smooth power-flow. Full-wave simulations on such a design of a cylindrical cloak are performed to demonstrate the cloaking ability to incident wave of any polarization. Using normal nature material with isotropy and low absorption, the cloak shows light on a practical path to stealth technology, especially that in the optical range.