Comment on "A self-assembled three-dimensional cloak in the visible" in Scientific Reports 3, 2328
Optics
2013-10-08 v1
Abstract
M\"uhlig et. al. propose and fabricate a "cloak" comprised of nano-particles on the surface of a sub-wavelength silica sphere. However, the coating only reduces the scattered fields. This is achieved by increased absorption, such that total extinction increases at all wavelengths. An object creating a large shadow is generally not considered to be cloaked; functionally, in contrast to the relatively few structures that can reduce total extinction, there are many that can reduce scattering alone.
Keywords
Cite
@article{arxiv.1310.1503,
title = {Comment on "A self-assembled three-dimensional cloak in the visible" in Scientific Reports 3, 2328},
author = {Owen D. Miller and Wenjun Qiu and John D. Joannopoulos and Steven G. Johnson},
journal= {arXiv preprint arXiv:1310.1503},
year = {2013}
}
Comments
2 pages, 1 figure