Full-wave finite-difference time-domain simulation of electromagnetic cloaking structures
arXiv:0803.2063 · doi:10.1364/OE.16.006717
Abstract
This paper proposes a radial dependent dispersive finite-difference time-domain method for the modelling of electromagnetic cloaking structures. The permittivity and permeability of the cloak are mapped to the Drude dispersion model and taken into account in dispersive FDTD simulations. Numerical simulations demonstrate that under ideal conditions, objects placed inside the cloak are `invisible' to external electromagnetic fields. However for the simplified cloak based on linear transformations, the back scattering has a similar level to the case of a PEC cylinder without any cloak, rendering the object still being `visible'. It is also demonstrated numerically that the simplified cloak based on high-order transformations can indeed improve the cloaking performance.
References in corpus (13)
- Optical Cloaking with Non-Magnetic Metamaterials
- Achieving transparency with plasmonic coatings
- Full-wave simulations of electromagnetic cloaking structures
- Calculation of material properties and ray tracing in transformation media
- Transformation media that rotate electromagnetic fields
- Optical design of reflectionless complex media by finite embedded coordinate transformations
- Confirmation of Cylindrical Perfect Invisibility Cloak Using Fourier-Bessel Analysis
- Electromagnetic cloaking by layered structure of homogeneous isotropic materials
- Cylindrical Invisibility Cloak with Simplified Material Parameters is Inherently Visible
- Magnifying perfect lens and superlens design by coordinate transformation
- Effectiveness and improvement of cylindrical cloaking with the SHS lining
- Finite-Difference Time-Domain Study of Guided Modes in Nano-plasmonic Waveguides
- Accurate Modelling of Left-Handed Metamaterials Using Finite-Difference Time-Domain Method with Spatial Averaging at the Boundaries
Cited by in corpus (11)
- Silicon nanostructure cloak operating at optical frequencies
- Ground-Plane Quasi-Cloaking for Free Space
- A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks
- Seamless Integration of Global Dirichlet-to-Neumann Boundary Condition and Spectral Elements for Transformation Electromagnetics
- Invisibility Cloaks Modeled by Anisotropic Metamaterials Based on Inductor-capacitor Networks
- Full-wave parallel dispersive finite-difference time-domain modeling of three-dimensional electromagnetic cloaking structures
- Manipulating the Loss in Electromagnetic Cloaks for Perfect Wave Absorption
- Dispersive Cylindrical Cloaks under Non-Monochromatic Illumination
- Broadband Extraordinary Transmission in a Single Sub-wavelength Aperture
- General equation for directed Electromagnetic Pulse Propagation in 1D metamaterial: Projecting Operators Method
- Achieving Invisibility of Homogeneous Radially Anisotropic Cylinders by Effective Medium Theory