Optical cages made of graphitic frameworks
Optics
2020-07-03 v2 Applied Physics
Abstract
In pursuit of infrared (IR) radiation absorbers, we examine quasicrystal structures made of graphite wires. An array of graphitic cages and cage-within-cage, and whose overall dimensions is smaller than the radiation wavelength exhibit a flat absorption spectrum, A~0.83 between 10-30 microns and a quality loss factor of L~0.83 (L=A/Q, with Q, the quality factor). Simulations at microwave frequencies show multiple absorption lines. In the case of a cage within cage, energy is funneled towards the inner cage which result in a rather hot structure. Applications are envisioned as anti-fogging surfaces, EM shields and energy harvesting.
Cite
@article{arxiv.1907.08656,
title = {Optical cages made of graphitic frameworks},
author = {J. P. Walker and H. Grebel},
journal= {arXiv preprint arXiv:1907.08656},
year = {2020}
}
Comments
7 pages 5 figures