Year: 2007
Type: article
Abstract: A cylindrical wave expansion method is developed to obtain the scattering field for an ideal two-dimensional cylindrical invisibility cloak. A near-ideal model of the invisibility cloak is set up to solve the boundary problem at the inner boundary of the cloak shell. We confirm that a cloak with the ideal material parameters is a perfect invisibility cloak by systematically studying the change of the scattering coefficients from the near-ideal case to the ideal one. However, because of the slow convergence of the zeroth-order scattering coefficients, a tiny perturbation on the cloak would induce a noticeable field scattering and penetration.
Source: Physical Review Letters
Authors: Zhichao Ruan, Min Yan, Curtis W. Neff, Min Qiu
Institutions: Zhejiang University, KTH Royal Institute of Technology
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Award: G671638293
OpenAlex ID: W1493460179