Title :
Pump/probe THz spectroscopy of the conductivity of TTF-TCNQ films
Author :
Roskos, H.G. ; Nishitani, J. ; Blank, V. ; Meng, F.Z. ; Thomson, M.D. ; Nagashima, T. ; Hangyo, M. ; Solovyeva, V. ; Huth, M.
Author_Institution :
Ultrafast Spectrosc. & THz Phys. Group, Johann Wolfgang Goethe-Univ., Frankfurt am Main, Germany
Abstract :
We perform optical-pump/THz-probe measurements on TTF-TCNQ films in the metallic state to study the picosecond conductivity dynamics. The data suggest charge-density-wave formation on a time scale of 10 ps following an ultrafast thermalization process.
Keywords :
charge density waves; electrical conductivity; high-speed optical techniques; optical pumping; organic compounds; terahertz wave spectra; thin films; TTF-TCNQ film conductivity; charge-density-wave formation; metallic state; optical-pump/terahertz-probe measurements; picosecond conductivity dynamics; pump/probe terahertz spectroscopy; time 10 ps; time scale; ultrafast thermalization process; Absorption; Conductivity; Films; Laser excitation; Measurement by laser beam; Spectroscopy; Temperature measurement;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612374
