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Related Experiment Video

Updated: May 12, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Metallic diffraction grating enhanced coupling in whispering gallery resonator.

Yanyan Zhou1, Xia Yu, Haixi Zhang

  • 1Precision Measurements Group, Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore.

Optics Express
|April 11, 2013
PubMed
Summary
This summary is machine-generated.

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Metallic diffraction gratings enhance whispering gallery resonator (WGR) coupling efficiency six-fold via surface plasmon excitation. This enables novel single-port WGR devices for sensing and nonlinear applications.

Area of Science:

  • Optics and Photonics
  • Nanotechnology

Background:

  • Whispering gallery resonators (WGRs) are crucial for various optical applications.
  • Efficiently coupling light into WGRs, especially in a single-port configuration, remains a challenge.

Purpose of the Study:

  • To investigate the use of metallic diffraction gratings for efficient light coupling into WGRs.
  • To demonstrate a novel single-port end-fire WGR configuration.

Main Methods:

  • Fabrication and characterization of a WGR integrated with a metallic diffraction grating.
  • Optical reflection measurements to observe Fano resonances and assess coupling efficiency.

Main Results:

  • Achieved a six-fold field enhancement in the WGR compared to dielectric counterparts.

More Related Videos

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
12:21

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

Related Experiment Videos

Last Updated: May 12, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
12:21

Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

Published on: April 4, 2016

  • Attributed enhanced coupling to surface plasmon excitation driving the whispering gallery mode.
  • Observed Fano resonances in optical reflection spectra.

    • Conclusions:

    • Metallic diffraction gratings enable unprecedented coupling efficiency in WGRs.
    • Demonstrated the first single-port end-fire WGR configuration.
    • The developed WGR serves as a prototype for portable devices in sensing, switching, and nonlinear optics.