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Updated: Jan 22, 2026
12:18
Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
17.5K
Coupling effects in single-mode and multimode resonator-coupled system.
Optics Express
|June 30, 2019
Summary
We developed a simple metal-dielectric-metal waveguide system demonstrating dual plasmon-induced transparency (PIT). This structure offers advantages for multichannel filters, optical switches, and sensors.
Area of Science:
- Photonics and Plasmonics
- Nanophotonics
- Optical Metamaterials
Background:
- Plasmon-induced transparency (PIT) is a phenomenon enabling sharp spectral features.
- Existing multichannel filters often lack structural simplicity and ease of fabrication.
Purpose of the Study:
- To propose and investigate a novel metal-dielectric-metal waveguide system for achieving dual PIT.
- To explore the tunability of PIT peaks and the sensing capabilities of the proposed structure.
Main Methods:
- Numerical simulations and theoretical analysis using a multimode-coupled mode theory (M-CMT).
- Design of a metal-dielectric-metal waveguide coupled with single-mode and multimode resonators.
Main Results:
- Achieved a dual PIT effect in the transmission spectra with opposite evolution tendencies of PIT peaks.
- Demonstrated structural simplicity and ease of fabrication compared to existing filters.
- Confirmed the suitability for sensing applications based on PIT effects.
Conclusions:
- The proposed MDM waveguide system effectively generates dual PIT.
- The structure is advantageous for developing multichannel filters, optical switches, and sensors.
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