Publication year

2019

Title

Investigation of the characteristics of high-resistivity silica based hybrid porous core photonic crystal fiber for terahertz wave guidance

Abstract

A porous core photonic crystal fiber (PC-PCF) is reported in this paper. The fiber comprises a hybrid core enclosed in a hexagonal cladding with high-resistivity float-zone silicon as the substrate material. Its effective material loss is 80% lower than bulk material absorption loss at an operating frequency of 1.0 terahertz (THz). Confinement loss in the order of 10−12 cm−1 and dispersion profile of 3.7 ± 0.15 ps/THz/cm within the range of 1.2 – 1.6 THz are attained under optimal parameters. Wave guiding properties, such as core power fraction, scattering loss and nonlinearity are also explored to further ensure the robustness of the proposed fiber. The proposed fiber has considerable potential in various short-distance THz applications, such as THz medical imaging, given its excellent guiding properties. © S.C. Virtual Company of Phisics S.R.L. All rights reserved.