Material- and geometry-independent multishell cloaking device

In this paper we propose a multishell generic cloaking system. A transparency condition independent of the object’s optical and geometrical properties is proposed in the quasistatic regime of operation. The suppression of dipolar scattering is demonstrated in both cylindrically and spherically symmetric systems. A realistic tunable low-loss shell design is proposed based on a composite metal-dielectric shell. The effects due to dissipation and dispersion on the overall scattering cross section are thoroughly evaluated. It is shown that a strong reduction of scattering by a factor of up to 103 can be achieved across the entire optical spectrum. Full wave numerical simulations for complex shaped particles are performed validating the analytical theory. The proposed design does not require optical magnetism and is generic in the sense that it is independent of the object’s material and geometrical properties.