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Achieving circular-to-linear polarization conversion and beam deflection simultaneously using anisotropic coding

Yao Jing1, Yongfeng Li2, Jieqiu Zhang1

  • 1Department of Basic Sciences, Air Force Engineering University, Xi'an, 710051, People's Republic of China.

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|August 24, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an anisotropic coding metasurface (CM) that converts circular polarization to linear polarization and deflects beams. This novel metasurface enables simultaneous polarization conversion and beam deflection for circularly polarized waves, paving the way for multifunctional devices.

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Area of Science:

  • Electromagnetics and Optics
  • Materials Science
  • Metasurface Engineering

Background:

  • Metasurfaces offer advanced control over electromagnetic waves.
  • Anisotropic metasurfaces provide independent manipulation of orthogonal polarizations.
  • Achieving simultaneous polarization conversion and beam deflection is a key challenge.

Purpose of the Study:

  • To propose and demonstrate an anisotropic coding metasurface (CM) for circular-to-linear polarization conversion and beam deflection.
  • To enable independent functional control for orthogonal linear polarizations.
  • To achieve simultaneous polarization conversion and beam deflection for circularly polarized (CP) waves.

Main Methods:

  • Design of a 1-bit anisotropic coding metasurface with specific coding sequences.
  • Utilizing distinct phase coding for two orthogonal linear polarized (LP) waves.
  • Electromagnetic simulations and experimental verification.

Main Results:

  • The anisotropic CM successfully achieved independent phase coding for orthogonal LP waves.
  • Incident CP waves were deflected into distinct polarized beams in different planes.
  • Simulation and experimental results confirmed the circular-to-linear polarization conversion.

Conclusions:

  • Anisotropic coding metasurfaces can achieve simultaneous circular-to-linear polarization conversion and beam deflection.
  • The proposed metasurface design offers potential for multifunctional electromagnetic devices.
  • This work advances the capabilities of programmable metasurfaces.