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Updated: Feb 5, 2026
11:08
Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
19.5K
Slowing designer surface plasmons in a surface-wave photonic crystal
Applied Optics
|September 6, 2018
Summary
We demonstrate a broadband slow-wave system using a graded photonic crystal. This system effectively slows and stops surface waves at various frequencies, enabling new slow-wave devices.
Area of Science:
- Photonics
- Metamaterials
- Surface Plasmonics
Background:
- Surface-wave photonic crystals offer unique wave manipulation properties.
- Controlling wave propagation, especially slowing or stopping waves, is crucial for device applications.
- Non-uniform structures can introduce tailored dispersion characteristics.
Purpose of the Study:
- To propose and demonstrate a broadband slow-wave system.
- To investigate the manipulation of surface waves in a non-uniform photonic crystal.
- To validate the slow-wave capabilities for potential device implementation.
Main Methods:
- Fabrication of a non-uniform line-defect waveguide with graded metallic pillars.
- Experimental demonstration using transmission measurements.
- Direct near-field profile imaging in microwave frequencies.
Main Results:
- Successful implementation of a broadband slow-wave system.
- Demonstration of tunable slowing and stopping of surface waves at different positions and frequencies.
- Validation of the system's performance within the photonic crystal's bandgap.
Conclusions:
- The proposed graded surface-wave photonic crystal enables broadband slow-wave propagation.
- The system is a promising platform for developing slow-wave devices.
- Potential applications exist in microwave and terahertz frequency ranges on single metal surfaces.
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