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3D printed low-loss THz waveguide based on Kagome photonic crystal structure
Optics Express
|November 10, 2016
Summary
A novel hollow core terahertz waveguide using Kagome photonic crystal structures was fabricated using 3D printing. This low-loss waveguide offers simple mechanical splicing and promises cost-effective terahertz technology.
Area of Science:
- Photonics
- Materials Science
- Terahertz Technology
Background:
- Terahertz (THz) waveguides are crucial for THz applications.
- Developing low-loss and cost-effective THz waveguides remains a challenge.
Purpose of the Study:
- To design and fabricate a low-loss hollow core terahertz waveguide.
- To investigate the performance of 3D printed Kagome photonic crystal structures for THz wave guiding.
Main Methods:
- Design and fabrication of a hollow core waveguide using Kagome lattice photonic crystal structure via 3D printing.
- Characterization of the waveguide's propagation loss using THz time-domain spectroscopy.
Main Results:
- Achieved average power propagation loss of 0.02 cm⁻¹ over 0.2-1.0 THz, with a minimum loss of 0.002 cm⁻¹ at 0.75 THz.
- Demonstrated simple mechanical splicing capability without additional alignment, maintaining excellent performance.
Conclusions:
- 3D printing is a viable and promising technique for fabricating Kagome THz waveguides.
- The developed waveguide offers low loss, cost-effectiveness, and ease of integration for THz applications.
