Numerical Design and Investigation of Circularly Segmented Air Holes-Assisted Hollow-Core Terahertz Waveguide as Optical Chemical Sensor. - M. Hussayeen Khan Anik; S. M. Riazul Islam; Shovasis Kumar Biswas; M. Ifaz Ahmad Isti; Mohona Das Gupta; Md. Jalil Piran; Kyung-Sup Kwak; Hriteshwar Talukder (IEEE Access, 2021)