Title :
Terahertz emission from vertically-aligned single-walled carbon nanotube films
Author :
Meehyun Lim ; Gyusoek Lee ; Thurakitseree, Theerapol ; Maruyama, Shoichi ; Ikmo Park ; Haewook Han
Author_Institution :
POSTECH, Pohang, South Korea
Abstract :
We experimentally investigated the terahertz (THz) photoresponse of vertically-aligned single-walled carbon nanotube (SWCNT) films by using optical pumping method. The SWCNT film was grown on the fused quartz substrate by using the alcohol catalytic CVD process. We observed that the strong THz radiation is emitted from the photoexcited SWCNT film. Our finding is the first demonstration of THz pulse emission for the unbiased SWCNT-based films.
Keywords :
carbon nanotubes; chemical vapour deposition; optical pumping; terahertz wave spectra; thin films; C; SiO2; THz pulse emission; THz radiation; alcohol catalytic CVD process; fused quartz substrate; optical pumping method; terahertz emission; terahertz photoresponse; vertically-aligned single-walled carbon nanotube films; Carbon nanotubes; High-speed optical techniques; Measurement by laser beam; Optical films; Optical pumping;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665516
