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Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Improved switching using Fano resonances in photonic crystal structures.
Mikkel Heuck1, Philip Trøst Kristensen, Yuriy Elesin
1Department of Photonics Engineering, Technical University of Denmark, Lyngby, Denmark. mheu@fotonik.dtu.dk
Optics Letters
|August 14, 2013
Summary
We developed a novel photonic crystal structure exhibiting asymmetric Fano transmission. This design significantly reduces energy consumption for optical switching applications compared to traditional Lorentzian resonance structures.
Area of Science:
- Photonics
- Optical Engineering
- Materials Science
Background:
- Fano resonances offer unique transmission properties.
- Photonic crystal waveguide-cavity structures are key for optical devices.
- Optical switching requires efficient resonance phenomena.
Purpose of the Study:
- To design a robust structure for asymmetric Fano transmission.
- To analyze the efficacy of Fano resonances in optical switching.
- To quantify energy reduction in Fano resonance-based switching.
Main Methods:
- Utilized coupled mode theory and 3D finite difference time domain simulations.
- Investigated Fano resonances within photonic crystal waveguide-cavity systems.
- Considered signal bandwidth effects in the simulations.
Main Results:
- Demonstrated a simple and robust structure for asymmetric Fano transmission.
- Showed significant energy reduction using Fano resonances over Lorentzian resonances.
- Quantified an order of magnitude energy reduction with Kerr nonlinearity.
Conclusions:
- Asymmetric Fano transmission structures are effective for low-energy optical switching.
- Fano resonances present a more energy-efficient alternative to Lorentzian resonances.
- This work paves the way for energy-saving photonic devices.
