Photoconductive antennas loaded with meta-atoms for terahertz radiation

Masanori Hangyo; Keisuke Takano; Yui Chiyoda; Fumiaki Miyamaru; Tsubasa Nishida; Mitsuo Wada Takeda; Hiromasa Suo; Seigo Ohno; Teruya Ishihara; Kazuhiro Murata

META 2021, META'12

Masanori Hangyo, Keisuke Takano, Yui Chiyoda, Fumiaki Miyamaru, Tsubasa Nishida, Mitsuo Wada Takeda, Hiromasa Suo, Seigo Ohno, Teruya Ishihara, Kazuhiro Murata

Last modified: 2011-12-05

Abstract

Meta-atoms are loaded to photoconductive antennas (PCAs) in order to control spectrum and polarization of emitted terahertz waves. PCAs loaded with split-ring resonators show characteristic enhancement of emission efficiency at specific frequencies. The chiral PCAs of gammadion type show elliptic polarization. These results indicate the way to design the spectrum and polarization of PCAs by loading meta-atoms.

Keywords

metamaterials; terahertz waves, photoconductive antennas