Title :
High performance terahertz polarizer based on super-aligned carbon nanotube sheet
Author :
Kyoung, Jisoo ; Jang, Eui Yun ; Lima, Márcio D. ; Park, Hyeongryeol ; Kim, Yong Hyup ; Baughman, Ray H. ; Kim, Dai-Sik
Author_Institution :
Dept. of Phys. & Astron., Seoul Nat. Univ., Seoul, South Korea
Abstract :
We present ideal terahertz linear polarizers made of a 1 μm-thick freestanding carbon nanotube film consisting of highly-aligned multi-wall CNT sheets. The extinction ratio of our polarizer reaches ~30 dB from 0.1 to 2.0 THz. Since neither e-beam lithography nor chemical etching is needed, easy, quick and safe manufacture of the polarizer is possible.
Keywords :
carbon nanotubes; electron beam lithography; semiconductor thin films; sputter etching; terahertz waves; C; chemical etching; e-beam lithography; freestanding carbon nanotube film; frequency 0.1 THz to 2.0 THz; super-aligned carbon nanotube sheet; terahertz linear polarizers; Biomedical optical imaging; Carbon nanotubes; Educational institutions; Extinction ratio; Optical films; Scanning electron microscopy;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105196
