NEW PHOTONIC CRYSTAL FIBER WITH A POROUS CORE BASED ON HRS FOR TERAHERTZ WAVE GUIDANCE

Abstract

An innovative PC-PCF, or Porous Core Photonic Crystal Fibre, is suggested and studied for its very low transmission loss and great birefringence. The use of high resistivity float zone silicon as the background dielectric material produces a high birefringence. X- and Y- orthogonal fundamental modes exhibit confinement losses in the order of 10-19 and 10-7, respectively, at a frequency of 1.3 THz, according to the simulation findings, and the suggested PC-PCF has an Effective Material Loss (EML) of 0.012 cm-1 and 0.0038 cm-1. The birefringence is also over 0.9. The X-polarization mode exhibits lower total losses over a broader frequency range compared to the Y- polarization mode, while retaining its strong birefringence. Additionally, we thoroughly examined the frequency- dependent changes in the core power percentage and effective modal area. Existing fabrication methods may readily produce the proposed PC-PCF because of its simple shape in both the core and cladding. Due to its strong birefringence, it might be used in terahertz medical imaging, filtration, interferometry, and sensing, among other possible uses.