High birefringence, low loss, and flattened dispersion photonic crystal fiber for terahertz application Project supported by the National Natural Science Foundation of China (Grant No. 11604260) and the Outstanding Youth Science Fund of Xi’an University of Science and Technology, China (Grant No. 2019YQ3-10). |
Plot of birefringence and EML versus relative strut thickness at 1 THz (Λ = 200 μm, core porosity = 55%). |