Title :
Ultrafast gigantic photo-response in charge-ordered organic salt (EDO-TTF)2PF6 on 10-fs time scales
Author :
Itatani, J. ; Rini, M. ; Cavalleri, A. ; Onda, K. ; Ishikawa, T. ; Ogihara, S. ; Koshihara, S. ; Shao, X. ; Yamochi, H. ; Saito, G. ; Schoenlein, R.W.
Abstract :
The initial dynamics of photo-induced phase transition in (EDO-TTF)2PF6 was investigated using 10-fs laser pulses. We observed sub-20-fs gigantic photo-responses (|DeltaR/R|>100%) and a clear signature of a structural bottleneck (~60 fs) for the first time.
Keywords :
high-speed optical techniques; metal-insulator transition; organic compounds; reflectivity; charge-ordered organic salt; insulator-to-metal phase transition; photo-induced phase transition; reflectivity changes; structural bottleneck; ultrafast gigantic photoresponse; Delay; Insulation; Laboratories; Laser transitions; Materials science and technology; Physics; Pulse amplifiers; Pulse compression methods; Reflectivity; Ultrafast optics; (160.4890) Organic materials; (320.7130) Ultrafast processes in condensed matter, including semiconductors;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
