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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Published on: December 27, 2012

An efficient broadband metamaterial wave retarder.

Jessie Y Chin1, Jonah N Gollub, Jack J Mock

  • 1Department of Radio Engineering, Southeast University, Nanjing 210096, China.

Optics Express
|April 29, 2009
PubMed
Summary

Researchers designed a broadband, low-loss metamaterial wave retarder using non-resonant elements. This device effectively manipulates electromagnetic wave polarization, converting linear polarization to its cross polarization.

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Area of Science:

  • Electromagnetism
  • Materials Science
  • Optics

Background:

  • Metamaterials possess anisotropic electromagnetic properties enabling control over electromagnetic wave polarization.
  • Wave retarders are crucial optical components for manipulating polarization states.

Purpose of the Study:

  • To design a broadband, low-loss wave retarder using metamaterial elements.
  • To achieve conversion of linear polarization to its cross polarization.

Main Methods:

  • Design of a metamaterial half-wave retarder with graded constitutive parameter distributions.
  • Utilizing non-resonant metamaterial elements for broadband operation.
  • Experimental characterization of the designed retarder's performance.

Main Results:

  • Successful design of a structured metamaterial half-wave retarder.
  • Demonstration of broadband and low-loss wave retardation.
  • Experimental validation of polarization conversion capabilities.

Conclusions:

  • Metamaterials offer a viable platform for creating efficient wave retarders.
  • Graded constitutive parameter distributions are effective for designing non-resonant metamaterial devices.
  • The developed metamaterial retarder shows promise for applications requiring precise polarization control.