Abstract
A novel porous core photonic crystal fiber (PC-PCF) is suggested and analyzed for terahertz waveguiding. The PC-PCF has a TOPAS background material with suspended asymmetric slotted core. Therefore, high birefringence of 0.09 is achieved with small material absorption losses of 0.016 cm−1 and 0.028 cm−1 for the quasi transverse electric (TE) and quasi transverse magnetic (TM) modes, respectively at f = 1.5 THz. Additionally low bending losses of 2.63 × 10–24 cm−1 and 8.16 × 10–36 cm−1 are obtained for the quasi TE and quasi TM modes, respectively at 1.0 cm bending radius and f = 1.5 THz. Further, the PC-PCF has an ultra-flat low dispersion of 0.54 $$\pm$$ 0.08 ps/THz/cm and 0.94 $$\pm 0.1{ }$$ ps/THz/cm for the quasi TE and TM modes, respectively within the frequency range of 0.8–1.2 THz. Therefore, the reported SSCPCF has a strong potential for usage in the Terahertz regime.
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