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@article{1373477,
author = {Xu, Lin and Chen, Huanyang and Tyc, Tomáš and Xie, Yangbo and Cummer, S A},
article_number = {4},
doi = {http://dx.doi.org/10.1103/PhysRevB.93.041406},
keywords = {invisible cloak; transformation optics; Riemann sheets},
language = {eng},
issn = {2469-9950},
journal = {Physical Review B},
title = {Perfect conformal invisible device with feasible refractive indexes},
url = {http://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.041406},
volume = {93},
year = {2016}
}
TY - JOUR
ID - 1373477
AU - Xu, Lin - Chen, Huanyang - Tyc, Tomáš - Xie, Yangbo - Cummer, S A
PY - 2016
TI - Perfect conformal invisible device with feasible refractive indexes
JF - Physical Review B
VL - 93
IS - 4
SP - "nestrankovano"
EP - "nestrankovano"
SN - 24699950
KW - invisible cloak
KW - transformation optics
KW - Riemann sheets
UR - http://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.041406
N2 - Optical conformal mapping has been used to construct several isotropic devices with novel functionalities. In particular, a conformal cloak could confer omnidirectional invisibility. However, the maximum values of the refractive indexes needed for current designs are too large to implement, even in microwave experiments. Furthermore, most devices designed so far have had imperfect impedance matching and therefore incomplete invisibility functionalities. Here we describe a perfect conformal invisible device with full impedance matching everywhere. The maximum value of refractive index required by our device is just about five, which is feasible for microwave and terahertz experiments using current metamaterial techniques. To construct the device, we use a logarithmic conformal mapping and a Mikaelian lens. Our results should enable a conformal invisible device with almost perfect invisibility to be made soon.
ER -
XU, Lin, Huanyang CHEN, Tomáš TYC, Yangbo XIE a S A CUMMER. Perfect conformal invisible device with feasible refractive indexes. \textit{Physical Review B}. roč.~93, č.~4, s.~''nestrankovano'', 7 s. ISSN~2469-9950. doi:10.1103/PhysRevB.93.041406. 2016.
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