Title :
Resonant enhancement of coherent higher-order phonons in single-walled carbon nanotubes
Author :
Sato, Kiminori ; Katayama, Ikufumi ; Tahara, K. ; Minami, Yasuo ; Takeda, Jun ; Yanagi, Kenjiro ; Kitajima, Masahiro
Author_Institution :
Dept. of Phys., Yokohama Nat. Univ., Yokohama, Japan
Abstract :
Coherent phonon dynamics in metallic carbon nanotubes has been investigated by pump-probe spectroscopy using a 7.5-fs laser. High-frequency coherent phonons up to 100 THz have been observed including second-order modes due to the electronic resonances.
Keywords :
Fourier transform spectra; Raman spectra; carbon; high-speed optical techniques; nanotubes; optical pumping; phonon spectra; C; coherent higher-order phonons; coherent phonon dynamics; electronic resonances; high-frequency coherent phonons; metallic carbon nanotubes; pump-probe spectroscopy; resonant enhancement; second-order modes; single-walled carbon nanotubes; time 7.5 fs; Carbon nanotubes; Measurement by laser beam; Optical pulses; Optical pumping; Phonons; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
