Active Exterior Cloaking

Abstract

A new method of cloaking is presented. For two-dimensional quasistatics it is proven how a single active exterior cloaking device can be used to shield an object from surrounding fields, yet produce very small scattered fields. The problem is reduced to finding a polynomial which is approximately one within one disk and zero within a second disk, and such a polynomial is constructed. For the two-dimensional Helmholtz equation, it is numerically shown that three active exterior devices placed around the object suffice to produce very good cloaking.

4 pages, 3 figures, submitted to Physical Review Letters

References in corpus (8)

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• Dielectric Optical Cloak
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Cited by in corpus (35)

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• Bounds on Herglotz functions and fundamental limits of broadband passive quasi-static cloaking
• Transformation elastodynamics and active exterior acoustic cloaking
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• Molding the flow of light with a magnetic field: plasmonic cloaking and directional scattering
• Mathematical analysis of the two dimensional active exterior cloaking in the quasistatic regime
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• Exterior cloaking with active sources in two dimensional acoustics
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• Cloaking strategy for Love waves
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• Active Huygens' Box: Metasurface-Enabled Arbitrary Electromagnetic Wave Generation Inside a Cavity
• Fundamental principles for generalized Willis metamaterials
• An Active Electromagnetic 3D Surface Cloak
• Analytic Materials
• Acoustic passive cloaking using thin outer resonators
• Active cloaking of finite defects for flexural waves in elastic plates
• Realizing broadband electromagnetic transparency with a graded-permittivity sphere
• Novel approaches to tailor and tune light-matter interactions at the nanoscale
• Analytical study of spherical cloak/anti-cloak interactions
• Active cloaking of resonant coated inclusions for waves in membranes and Kirchhoff plates
• On the active manipulation of quasistatic fields and its applications
• Active cloaking for clusters of pins in thin plates
• Feasibility Analysis for the Problem of Active Near Field/Far Field Acoustic Pattern Synthesis in Free Space and Shallow Water Environments
• On Near-cloak in Acoustic Scattering
• On the active manipulation of EM fields in open waveguides