Dielectric Optical Cloak
Optics
2015-03-05 v1
Abstract
Invisibility or cloaking has captured human's imagination for many years. With the recent advancement of metamaterials, several theoretical proposals show cloaking of objects is possible, however, so far there is a lack of an experimental demonstration at optical frequencies. Here, we report the first experimental realization of a dielectric optical cloak. The cloak is designed using quasi-conformal mapping to conceal an object that is placed under a curved reflecting surface which imitates the reflection of a flat surface. Our cloak consists only of isotropic dielectric materials which enables broadband and low-loss invisibility at a wavelength range of 1400-1800 nm.
Cite
@article{arxiv.0904.3602,
title = {Dielectric Optical Cloak},
author = {Jason Valentine and Jensen Li and Thomas Zentgraf and Guy Bartal and Xiang Zhang},
journal= {arXiv preprint arXiv:0904.3602},
year = {2015}
}
Comments
11 pages, 4 figures