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Related Experiment Video

Updated: May 13, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Controlling the spectral width in compound waveguide grating structures.

Wenxing Liu1, Yunhui Li, Haitao Jiang

  • 1Key Laboratory of Advanced Micro-structure Materials, Ministry of Education, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China.

Optics Letters
|March 5, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers developed a new method to independently control the spectral width of guided-mode resonance (GMR) in compound waveguide gratings. This simple technique allows precise tuning of spectral responses without altering spectral lineshapes.

Area of Science:

  • Photonics and optical engineering
  • Waveguide optics
  • Nanophotonics

Background:

  • Guided-mode resonance (GMR) in periodic structures is crucial for optical filtering and sensing.
  • Controlling the spectral width of GMR is essential for device performance but often complex.
  • Existing methods may affect other spectral characteristics.

Purpose of the Study:

  • To present a novel method for independently tailoring the spectral width of GMR.
  • To demonstrate control over spectral responses in compound waveguide gratings.
  • To offer a simple and efficient approach for GMR spectral engineering.

Main Methods:

  • Utilizing compound waveguide gratings with two identical ridges per period.
  • Analyzing the spectral responses of these specific grating structures.

Related Experiment Videos

Last Updated: May 13, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

  • Investigating the relationship between structural parameters and GMR spectral width.

    • Main Results:

    • Demonstrated independent control over the spectral width of GMR.
    • Showcased the ability to tune spectral width without affecting spectral lineshapes or sideband levels.
    • Confirmed the simplicity and efficiency of the proposed method.

    Conclusions:

    • The proposed compound waveguide grating structure offers a facile way to engineer GMR spectral responses.
    • Independent control of spectral width is achievable, enhancing design flexibility.
    • This method provides a significant advancement for GMR-based optical devices.