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Updated: Jun 22, 2026
13:02
Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Coupled photonic crystal heterostructure nanocavities
Optics Express
|June 18, 2009
Summary
We experimentally coupled up to ten photonic crystal cavities, creating a chain resonator system. This breakthrough allows precise engineering of light
Area of Science:
- Photonics
- Materials Science
- Condensed Matter Physics
Background:
- Coupled resonator systems are crucial for controlling light propagation.
- Photonic crystal cavities offer unique light-matter interaction properties.
- Engineering light velocity in such systems is a key challenge.
Purpose of the Study:
- To demonstrate the first experimental coupling of multiple heterostructure photonic crystal cavities.
- To create a chain of coupled resonators for light velocity engineering.
- To investigate the relationship between structure imperfections and theoretical models.
Main Methods:
- Fabrication of coupled photonic crystal cavities using 193 nm deep UV lithography.
- Utilizing standard silicon processing technology for device creation.
- Analysis via coupled resonator theory and photonic bandstructure theory.
Main Results:
- Successfully coupled up to ten heterostructure photonic crystal cavities into a chain.
- Demonstrated the ability to engineer the group velocity of light over a wide range.
- Identified discrepancies between experimental results and theoretical predictions due to fabrication imperfections.
Conclusions:
- The experimental demonstration validates the concept of coupled heterostructure photonic crystal cavities for light control.
- The system provides a versatile platform for tunable light group velocity.
- Understanding fabrication imperfections is critical for refining theoretical models and device performance.
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