Title :
Terahertz vector bessel beams generated by plasmonic waveguide scattering
Author :
Monnai, Yasuaki ; Withayachumnankul, Withawat ; Jahn, David ; Koch, Martin ; Shinoda, Hiroyuki
Author_Institution :
Grad. Sch. of Frontier Sci., Univ. of Tokyo, Tokyo, Japan
Abstract :
We propose a method to generate THz vector Bessel beams by converting spoof surface plasmon polaritons into a series of backward radiation titled towards the optical axis using a concentric metal corrugation structure. The proposed method enables replacing a conventional bulky axicon lens with a flat device and contributes to the implementation of integrated THz systems.
Keywords :
electromagnetic wave scattering; plasmons; waveguides; backward radiation; concentric metal corrugation structure; integrated THz systems; optical axis; plasmonic waveguide scattering; spoof surface plasmon polaritons; terahertz vector bessel beams; thz vector bessel beams; Corrugated surfaces; Educational institutions; Gratings; Optical surface waves; Plasmons; Surface waves; Vectors;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956331
