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Invisibility cloak with image projection capability.

Debasish Banerjee1, Chengang Ji1,2, Hideo Iizuka3

  • 1Toyota Research Institute of North America, Toyota Motor North America, Ann Arbor, MI 48105, USA.

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|December 14, 2016
PubMed
Summary
This summary is machine-generated.

This study presents a novel invisibility cloak that conceals large objects while simultaneously projecting images through it. This practical device uses orthogonal polarizations for cloaking and projection, advancing transparent device technology.

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Area of Science:

  • Optics and Photonics
  • Metamaterials and Nanophotonics

Background:

  • Invisibility cloak research often requires extreme material parameters, hindering realization, especially in the visible spectrum.
  • Simplified theories have enabled cloaking large objects in the visible region by exploiting human eye insensitivity to light polarization and phase.

Purpose of the Study:

  • To experimentally demonstrate a device concept for simultaneously cloaking a large object and projecting images through it.
  • To utilize orthogonal polarizations for distinct cloaking and image projection functions.

Main Methods:

  • Development of a device using commercially available optical components like polarizers and mirrors.
  • Employing a novel approach that separates cloaking and image projection functionalities using orthogonal light polarizations.

Main Results:

  • Successful experimental demonstration of a device that conceals a large object.
  • Simultaneous projection of images through the cloak structure was achieved.
  • The device leverages orthogonal polarizations for independent cloaking and projection.

Conclusions:

  • The developed device represents a significant step towards practical applications of invisibility cloaking.
  • The approach offers a pathway for creating advanced transparent devices and see-through displays.