@article{sadath_kokinda_lin_hossain_gu_2024, title={Porous core fiber with hybrid cladding for ultra-flattened dispersion and low loss propagation of terahertz waves}, volume={15}, ISSN={["2666-9501"]}, DOI={10.1016/j.rio.2024.100646}, abstractNote={This work proposes a design of a porous-core photonic crystal fiber (PC-PCF) made of a cyclic olefin copolymer, Zeonex, with a hybrid cladding for low-loss terahertz (THz) wave transmission. A combination of circular and elliptical air holes results are employed, resulting in a very low material absorption loss of 0.045 cm-1 atDcore = 450 µm and f = 1 THz. A flat dispersion of 0.73 ± 0.13 ps/THz/cm is obtained for a broad frequency range of 0.5–1.4 THz. Core diameter and frequency response of other key features such as normalized frequency (V-parameter), confinement loss, effective area, nonlinearity and the percentage of the power flow through different sections of the proposed PC-PCF are also analyzed. Comparing to state-of-the-art, our design is superior in terms of loss, dispersion and power fraction. Our proposed design can be manufactured using the established extrusion process and be used for long distance low-loss Terahertz (THz) communication.}, journal={RESULTS IN OPTICS}, author={Sadath, Md Anwar and Kokinda, Jacob and Lin, Dayang and Hossain, Md Sanwar and Gu, Qing}, year={2024}, month={May} }