Open AccessAll dielectric macroscopic cloaks for hiding objects and creating illusions at visible frequencies
Author(s) -
Qipeng Cheng,
Kedi Wu,
Guo Ping Wang
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.023240
Subject(s) - cloak , optics , invisibility , holography , physics , dielectric , illusion , computer science , lossy compression , computer generated holography , metamaterial , artificial intelligence , optoelectronics , neuroscience , biology
We introduce and numerically demonstrate a kind of isotropic dielectric macroscopic cloaks for hiding objects and creating illusions at visible frequencies. The cloaks are designed by angular spectrum theory and their working principle is based upon time reversal and conjugation operation. We will demonstrate that the cloaks are capable of hiding both phase-only and lossy objects. The size of the object to be hidden and the distance between the object and the cloak can be in range of millimeter and meter scale, respectively. The results are demonstrated by computer generated holography. Our work may provide a new way for pushing invisibility cloaks a big step toward more realistic fields.