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Updated: Apr 25, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Stable planar mesoscopic photonic crystal cavities.
Mesoscopic self-collimation in photonic crystals creates high-Q cavities using novel planar mirrors. These mirrors offer improved reflectivity and compactness for advanced optical devices.
Area of Science:
- Photonics
- Optical Engineering
- Materials Science
Background:
- Mesoscopic self-collimation (MSC) is a phenomenon in photonic crystals.
- High reflectivity is crucial for optical cavity performance.
- Standard distributed Bragg reflectors have limitations in compactness and reflectivity.
Purpose of the Study:
- To exploit MSC for a novel high Q-factor cavity.
- To develop mesoscopic photonic crystal (PhC) planar mirrors.
- To enhance optical confinement and energy storage.
Main Methods:
- Utilizing mesoscopic self-collimation in mesoscopic photonic crystals.
- Designing and fabricating mesoscopic PhC planar mirrors.
- Analyzing cavity performance, including Q-factor, energy storage, and field enhancement.
Main Results:
- Achieved a Q-factor higher than 10⁴ in an optimized 5-period-long mirror cavity.
- Demonstrated efficient mode confinement within a planar Fabry-Perot-like cavity.
- Showcased improved reflectivity compared to standard distributed Bragg reflectors, enabling higher compactness.
Conclusions:
- Mesoscopic PhC planar mirrors enable high-Q cavities via MSC.
- The developed mirrors offer superior performance and compactness for optical applications.
- Further optimization details for Q-factor and energy storage are presented.
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