Title :
Achromatic THz wave plate composed of stacked parallel metal plates with a pillar array
Author :
Mukai, Noriyuki ; Nagai, Masaharu ; Minowa, Yosuke ; Ashida, M. ; Takayanagi, Jun ; Ohtake, H.
Author_Institution :
Grad. Sch. of Eng. Sci., Osaka Univ., Toyonaka, Japan
Abstract :
We propose an achromatic wave plate in the high THz frequency region based on the artificial medium. It is composed of the stacked parallel metal plates with a pillar array, which bring in the controllable birefringence in an effectively lossless medium. We experimentally demonstrate that the artificial medium operates as the quarter wave plate from 2.05 to 3.26 THz.
Keywords :
birefringence; parallel plate waveguides; terahertz wave devices; terahertz wave generation; achromatic wave plate; artificial medium; controllable birefringence; frequency 2.05 THz to 3.26 THz; high THz frequency region; lossless medium; pillar array; quarter wave plate; stacked parallel metal plates; Arrays; Bandwidth; Metals; Optical waveguides; Optimized production technology; Resonant frequency;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956344
