Full-wave simulations of electromagnetic cloaking structures.

By S. Cummer, B. Popa, David Schurig, David R. Smith, John B. Pendry. Physical review. E, Statistical, nonlinear, and soft matter physics, 2006

783 citations recorded by the source corpus.

Pendry et al. have reported electromagnetically anisotropic and inhomogeneous shells that, in theory, completely shield an interior structure of arbitrary size from electromagnetic fields without perturbing the external fields. Neither the coordinate transformation-based analytical formulation nor the supporting ray-tracing simulation indicate how material perturbations and full-wave effects might affect the solution. We report fully electromagnetic simulations of the cylindrical version of this cloaking structure using ideal and nonideal (but physically realizable) electromagnetic parameters that show that the low-reflection and power-flow bending properties of the electromagnetic cloaking structure are not especially sensitive to modest permittivity and permeability variations. The cloaking performance degrades smoothly with increasing loss, and effective low-reflection shielding can be achieved with a cylindrical shell composed of an eight- (homogeneous) layer approximation of the ideal continuous medium. An imperfect but simpler version of the cloaking material is derived and is shown to reproduce the ray bending of the ideal material in a manner that may be easier to experimentally realize.

Subfields: Aerospace Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/c9be9cf0ca40c909665ca409563cb8a073e0b186

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

In Atomic and Molecular Physics, and Optics

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Transformation Electromagnetics: An Overview of the Theory and Applications (2010, methodology): “The permittivity and permeability tensors f' and p,', relative to the free-space values are found from Equations (8) and (9) as [2, 10 ]”
Deep Physical Informed Neural Networks for Metamaterial Design (2020, methodology): “Since the components of μr and r are piecewise constants in polar coordinate as in [30], [31], we now transform our governor equation to polar coordinate:”
Cloaking via change of variables in electric impedance tomography (2008, background): “The physics literature recognizes this issue; for example, Cummer et al write in [12] that ‘whether perfect cloaking is achievable, even in theory, is .”
Optical cloaking with metamaterials (2006, background): “Combining equations (6) and (7), at the operational wavelength λ we obtain”