title: Bending loss of terahertz pipe waveguides.
abstract: We present an experimental study on the bending loss of terahertz (THz) pipe waveguide. Bending loss of pipe waveguides is investigated for various frequencies, polarizations, core diameters, cladding thicknesses, and cladding materials. Our results indicate that the pipe waveguides with lower guiding loss suffer lower bending loss due to stronger mode confinement. The unexpected low bending loss in the investigated simple leaky waveguide structure promises variety of flexible applications.
authors.affiliation: Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan.
authors.forename: Jen-Tang
authors.initials: JT
authors.lastname: Lu
authors.forename: Yu-Chun
authors.initials: YC
authors.lastname: Hsueh
authors.forename: Yu-Ru
authors.initials: YR
authors.lastname: Huang
authors.forename: Yuh-Jing
authors.initials: YJ
authors.lastname: Hwang
authors.forename: Chi-Kuang
authors.initials: CK
authors.lastname: Sun
mesh_terms: D055119:Elastic Modulus; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D055053:Terahertz Radiation