[14p-B2-1~19] 3.9 Terahertz technologies

[14p-B2-14] Frequency Response Measurement of Optical-to-THz Signal Direct Conversion Device

〇Satoshi Yamasaki¹, Amemiya Tomohiro^1,2, Furusawa Kentaro³, Hara Shinsuke³, Watanabe Issei³, Sekine Norihiko³, Nishiyama Nobuhiko^1,2, Kasamatsu Akifumi³, Arai Shigehisa^1,2 (1.Titech, 2.FIRST, 3.NICT)

Keywords:terahertz, waveguide

Previously, we fabricated an optical-to-THz direct conversion device using photocarrier of Ⅲ-Ⅴ semiconductor and metal ring, and we obtained the extinction ratio of 16.8dB. This time, we measured the frequency response characteristic. As a result, the 3dB modulation bandwidth was about 170 MHz.