Revisit the carpet cloak from optical conformal mapping

TL;DR

This paper introduces a new design for a carpet cloak using optical conformal mapping, providing an analytical refractive index profile that simplifies experimental implementation compared to previous numerical methods.

Contribution

The paper presents an analytical refractive index profile for a carpet cloak based on optical conformal mapping, improving upon the numerical approach of earlier designs.

Findings

Analytical refractive index profile derived for the carpet cloak

Simplifies experimental realization of cloaking devices

Builds on previous numerical methods with a new analytical approach

Abstract

The original carpet cloak [Phys. Rev. Lett. 101, 203901 (2008)] was designed by a numerical method, the quasi-conformal mapping. Therefore its refractive index profile was obtained numerically. In this letter, we propose a new carpet cloak based on the optical conformal mapping, with an analytical form of a refractive index profile, thereby facilitating future experimental designs.