Phanchat N.Talataisong W.Klokkou N.Chitaree R.Apostolopoulos V.Beresna M.Brambilla G.Mahidol University2023-06-182023-06-182022-04-11Optics Express Vol.30 No.8 (2022) , 13059-13069https://repository.li.mahidol.ac.th/handle/20.500.14594/86922A hollow-core anti-resonant fiber for the THz regime is proposed and demonstrated. The proposed fiber is the hexagonal core shape which is directly extruded using a conventional 3D printer. Experimental results show that by using cyclic olefin copolymer (COC), the proposed fiber design provides a low attenuation of ∼3 dB/m at ∼ 0.86 THz and ∼15 dB/m at ∼ 0.42 THz.Physics and AstronomyArticleSCOPUS10.1364/OE.4505502-s2.0-851282307481094408735472928