Open AccessUltra‐flat low material loss porous core THz waveguide with near zero flat dispersion
Author(s) -
Ali S.,
Ahmed N.,
Aljunid S.,
Ahmad B.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.0364
Subject(s) - terahertz radiation , materials science , optics , dispersion (optics) , waveguide , core (optical fiber) , optoelectronics , physics , composite material
A near zero dispersion flattened porous core photonic crystal fibre having ultra‐flat low material loss suitable for terahertz (THz) transmission is represented. A novel type of geometrical structure of air hole position has been proposed in this design. Numerical analysis exhibits effective material loss (EML) of 0.03746 cm −1 at 1.0 THz operating frequency and a flat EML of 0.0398 cm −1 from 1.5 to 5.0 THz with absolute EML coefficient of ±0.000416 cm −1 . The proposed waveguide shows near zero flat dispersion of 0.4 ± 0.042 ps/THz/cm in the frequency range from 1.25 to 5.0 THz.