Title :
Coherent terahertz radiation from TTF-TCNQ films irradiated with optical pulses
Author :
Nagashima, Takeshi ; Nishitani, Junichi ; Blank, Volker ; Thomson, Mark D. ; Roskos, Hartmut G. ; Hangyo, Masanori ; Solovyeva, V. ; Huth, M.
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Suita, Japan
Abstract :
We have observed coherent terahertz emission from TTF-TCNQ films excited by femtosecond laser pulses. The waveform consists of a weak pulse and damped oscillations with a frequency of 1.4 THz. The oscillations are considered to be radiation from optically excited coherent phonons.
Keywords :
high-speed optical techniques; laser beams; light coherence; organic compounds; phonons; submillimetre wave spectra; terahertz waves; TTF-TCNQ films; coherent phonon; coherent terahertz emission; coherent terahertz radiation; femtosecond laser pulse; frequency 1.4 THz; optical pulses; tetrathiafulvalene tetracyanoquinodimethane; Optical films; Optical pulses; Optical pumping; Oscillators; Phonons; Transient analysis; Ultrafast optics;
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.2011.6104912
