@article{paperid:1077633,
author = {Eskandari, Hossein and Tomas Tyc},
title = {Controlling refractive index of transformation-optics devices via optical path rescaling},
journal = {Scientific Reports},
year = {2019},
volume = {9},
number = {1},
month = {December},
issn = {2045-2322},
keywords = {We present a general method of designing optical devices based on optical conformal mapping and
rescaling the optical path along a given bunch of rays. It provides devices with the same functionality
as those based purely on conformal mapping; but enables to manipulate the refractive index to a great
extent—for instance; eliminate superluminal regions of space as well as reduce the refractive index
in other regions significantly. The method is illustrated in two examples; a waveguide coupler and a
plasmonic bump cloak; and numerical simulations confirm its functionality.},
}