Metamaterials and invisibility

Document Type : Review paper

Author

Department of Nanomaterial and Nanocoating, Institute for Color Science and Technology, Tehran, Iran, P. O. Box: 167654-654.

Abstract

Invisibility is one of the aspirations of human beings that the optics and materials have made, and metamaterials make this achievable. Metamaterials have amazing optical properties, including a negative refractive index, which are not found in nature and must be prepared with special techniques. Normally, the light that hits an opaque object is reflected from it and becomes visible. Metamaterials transform this two-way relationship between light and objects so that the light changes its direction around the object without being reflected and passing through it. In this case, the object becomes invisible because no light is visible. In this article, general information about how objects become invisible and methods of preparing metamaterials will be presented by using the principles of light physics and explaining the phenomena of light refraction and surface plasmon.

Keywords

Main Subjects

References

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Journal of Studies in Color World
Volume 14, Issue 2
June 2024
Pages 119-132

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History

  • Receive Date: 22 October 2023
  • Revise Date: 27 February 2024
  • Accept Date: 27 February 2024

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