3D Printed Terahertz Antiresonant Fibers for Controllable Guiding Properties

We study, fabricate and characterize the properties of hollow antiresonant (AR) terahertz waveguides ideal for terahertz transmission. We model and measure transmission loss as the antiresonant tube thickness is varied from 0.45 to 0.55 mm with constant fiber dimensions. The experimental results confirm that the 3D printed AR waveguide can guide terahertz wave with low loss and illustrate spectral features near the resonant frequencies. The aim of this work is to develop a low-loss, low cost and simple terahertz waveguides with transmission behavior adjusted by a single parameters, the cladding tube thickness.