title: A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation.
abstract: A tapered parallel plate waveguide was developed for frequency up-conversion experiments in the terahertz (THz) region by flash ionization. The element at the plasma-source-wave interaction area determines the conversion efficiency. It causes THz pulses to converge to a narrow plate separation, which is smaller than the wavelength. The waveguide exhibited good performance for transmitting p-polarized THz pulses in a 50 μm separation, making it suitable for flash ionization experiments.
authors.affiliation: Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan. nishida@ef.eie.eng.osaka-u.ac.jp
authors.forename: A
authors.initials: A
authors.lastname: Nishida
authors.forename: H
authors.initials: H
authors.lastname: Kashiwazaki
authors.forename: S
authors.initials: S
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Higashiguchi
authors.forename: N
authors.initials: N
authors.lastname: Yugami
authors.forename: R
authors.initials: R
authors.lastname: Kodama
mesh_terms: D007834:Lasers; D008962:Models, Theoretical; D058626:Plasma Gases; D055618:Radiation Equipment and Supplies
chemical_list: D058626:Plasma Gases