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A Behavioral Assay for Investigating the Role of Spatial Memory During Instinctive Defense in Mice
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Published on: July 21, 2018

Hiding in the corner.

Weiren Zhu1, Ilya Shadrivov, David Powell

  • 1Nonlinear Physics Center and CUDOS, Research School of Physics and Engineering, The Australian National University, Canberra ACT 0200, Australia. wrz124@physics.anu.edu.au

Optics Express
|October 15, 2011
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel electromagnetic cloak for corner concealment, showing excellent performance via numerical simulation. This simplified cloak design has homogeneous parameters, aiding practical realization.

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Area of Science:

  • Electromagnetism
  • Metamaterials
  • Wave physics

Background:

  • Electromagnetic cloaking aims to render objects invisible to electromagnetic waves.
  • Concealing objects in corners presents unique challenges due to boundary conditions.

Purpose of the Study:

  • To introduce a novel electromagnetic cloak design for corner concealment.
  • To evaluate the cloak's performance using direct numerical simulation.
  • To analyze the impact of angular dependence and material loss on cloaking effectiveness.

Main Methods:

  • Direct numerical simulation was employed to validate the cloak's performance.
  • The study investigated the angular dependence of the cloaking effect.
  • The influence of material loss on the invisibility performance was analyzed.

Main Results:

  • The novel electromagnetic cloak demonstrated excellent performance in concealing objects in a corner.
  • Analysis revealed the angular dependence and the effect of loss on invisibility.
  • A comparison between ideal and simplified cloak designs was conducted.

Conclusions:

  • The proposed electromagnetic cloak offers a practical solution for corner concealment.
  • Homogeneous constitutive parameters simplify the realization of the cloak.
  • The findings contribute to the advancement of metamaterial-based cloaking technologies.