Characterization of a microstructured Zeonex terahertz fiber

Fast and stable gratings inscription in POFs made of different materials with pulsed 248 nm KrF laser

“…Zeonex 480R material presents further advantages compared to Topas 5013 such as superior drawability that allow a more robust fabrication of microstructures in the fiber [20]. Both Topas and Zeonex have low loss at THz frequencies and have been applied extensively in this field also [22][23][24]. In addition to the aforementioned POF materials, polycarbonate (PC) polymer can also be used for fiber fabrication [25].…”

Light propagation mechanism switching in a liquid crystal infiltrated microstructured polymer optical fibre

“…In the first of them, LC was heated to an isotropic phase before infiltration (results shown in Figs. [4][5] and in the second one, LC was in a nematic phase during infiltra− tion process (results shown in Fig. 6).…”

“…Research activi− ties on mPOFs have started in 2001 when the first micro− structured optical fibre made out of commercially available extruded polymethylmethacrylate (PMMA) was fabricated [4]. Since then other polymers with specific properties have also been used for mPOF, including, e.g., the cyclo−olefin polymer (Zeonex) [5,6] and co−polimer (Topas) [7,8], poly− styrene and polycarbonate (PC) [9]. The application of po− lymers in PCF technology gives many advantages including relatively low−cost fibre fabrication and processing, great resistance to mechanical stress, large−spot single−mode gui− dance and high flexibility even at large fibre diameters [2,3,10].…”

Mode profiling of THz fibers with dynamic aperture near-field imaging

“…Nielsen et al [2] presented a non-dispersive, THz photonic crystal fiber (PCF) based on TOPAS © , a cyclic olefin copolymer. Other porous or microstructured fiber have been proposed [3,4] and their respective mode profiles have been analyzed by different methods.…”