Jing Yang, Jiayu Zhao, Cheng Gong, Haolin Tian, Lu Sun, Ping Chen, Lie Lin, and Weiwei Liu
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-24-20-22454
A low-loss hollow core terahertz waveguide based on Kagome photonic crystal structure has been designed and fabricated by 3D printing. The 3D printed waveguide has been characterized by using THz time-domain spectroscopy. The results demonstrate that the obtained waveguide features average power propagation loss of 0.02 cm−1 for 0.2-1.0 THz (the minimum is about 0.002 cm−1 at 0.75 THz). More interesting, it could be simply mechanically spliced without any additional alignment, while maintaining the excellent performance. The 3D printing technique will be a promising solution to fabricate Kagome THz waveguide with well controllable characteristics and low cost.
© 2016 Optical Society of America
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