We report the use of a terahertz(THz)transparent material,cyclic olefin copolymer(COC or TOPAS),for fabricating a hollow-core antiresonant fiber that provides an electromagnetic wave guidance in the THz regime.A novel...We report the use of a terahertz(THz)transparent material,cyclic olefin copolymer(COC or TOPAS),for fabricating a hollow-core antiresonant fiber that provides an electromagnetic wave guidance in the THz regime.A novel fabrication technique to realize a hollow-core antiresonant polymer optical fiber(HC-ARPF)for THz guidance is proposed and demonstrated.The fiber is directly extruded in a single-step procedure using a conventional fused deposition modeling 3 D printer.The fiber geometry is defined by a structured nozzle manufactured with a metal 3 D printer,which allows tailoring of the nozzle design to the various geometries of microstructured optical fibers.The possibility to use the HC-ARPF made from TOPAS for guiding in the THz region is theoretically and experimentally assessed through the profile of mode simulation and time-frequency diagram(spectrogram)analysis.展开更多
文摘We report the use of a terahertz(THz)transparent material,cyclic olefin copolymer(COC or TOPAS),for fabricating a hollow-core antiresonant fiber that provides an electromagnetic wave guidance in the THz regime.A novel fabrication technique to realize a hollow-core antiresonant polymer optical fiber(HC-ARPF)for THz guidance is proposed and demonstrated.The fiber is directly extruded in a single-step procedure using a conventional fused deposition modeling 3 D printer.The fiber geometry is defined by a structured nozzle manufactured with a metal 3 D printer,which allows tailoring of the nozzle design to the various geometries of microstructured optical fibers.The possibility to use the HC-ARPF made from TOPAS for guiding in the THz region is theoretically and experimentally assessed through the profile of mode simulation and time-frequency diagram(spectrogram)analysis.
