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Related Experiment Video

Updated: May 19, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Published on: August 5, 2013

Wide-angle transmissive filter based on a guided-mode resonant grating.

Yan Ye1, Renjin Shao, Yun Zhou

  • 1Institute of Information Optical Engineering, Soochow University, Suzhou 215006, China. yanye@suda.edu.cn

Applied Optics
|August 22, 2012
PubMed
Summary
This summary is machine-generated.

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This study introduces a novel wide-angle color filter using a guided-mode resonant grating. The proposed metal-coated grating achieves efficient green color filtering with excellent angular stability.

Area of Science:

  • Optics and Photonics
  • Nanotechnology
  • Materials Science

Background:

  • Guided-mode resonant gratings offer unique optical properties.
  • Metal-coated gratings can enhance filter performance.
  • Achieving wide-angle optical filters remains a challenge.

Purpose of the Study:

  • To design and analyze a wide-angle color filter for Transverse Electric (TE)-polarization.
  • To investigate the impact of structural parameters on resonant transmission.
  • To optimize the structure for efficient green color filtering.

Main Methods:

  • Rigorous Coupled-Wave Analysis (RCWA) was employed.
  • Simulation of a metal-coated guided-mode resonant grating structure.
  • Systematic analysis of structural parameters influencing optical characteristics.

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Last Updated: May 19, 2026

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Published on: August 5, 2013

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Main Results:

  • An optimal structure for a green color filter was identified.
  • Achieved peak transmission of 77.6% with a Full Width at Half Maximum (FWHM) of ~120 nm.
  • Demonstrated good angular tolerance up to ±40° for TE-polarization.

Conclusions:

  • The designed guided-mode resonant grating filter exhibits excellent wide-angle transmission performance.
  • The metal coating effectively narrows the FWHM compared to nonresonant dielectric gratings.
  • This technology shows promise for advanced optical filtering applications.