A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation

A Nishida; H Kashiwazaki; S Yoshida; T Higashiguchi; N Yugami; R Kodama

doi:10.1063/1.3697700

A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation

Rev Sci Instrum. 2012 Apr;83(4):045104. doi: 10.1063/1.3697700.

Authors

A Nishida¹, H Kashiwazaki, S Yoshida, T Higashiguchi, N Yugami, R Kodama

Affiliation

¹ Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan. nishida@ef.eie.eng.osaka-u.ac.jp

PMID: 22559573
DOI: 10.1063/1.3697700

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Lasers
Models, Theoretical
Plasma Gases
Radiation Equipment and Supplies*

Substances

Plasma Gases