Title :
Femtosecond pump and probe experiments on thiophene-based polymers by a hybridly mode-locked cavity-dumped dye laser
Author :
Nisoli, Mauro ; Cybo-Ottone, Alessandro ; De Silvestri, Sandro ; Magni, Vittorio ; Svelto, O. ; Tubino, Riccardo ; Botta, Chiara
Author_Institution :
Centro di Elettronica Quantistica e Strumentazione Elettronica, Istituto di Fisica, Milan, Italy
fDate :
3/1/1993 12:00:00 AM
Abstract :
Results on the bleaching decay observed in low-band gap thiophene-based polymers by femtosecond pump and probe experiments are presented. The laser used for excitation and probe is a newly developed cavity dumped femtosecond dye laser. The excited state kinetics of these materials presents a fast biexponential time behavior that may be related to the formation and decay of self-trapped excitons
Keywords :
excitons; high-speed optical techniques; measurement by laser beam; optical polymers; optical pumping; optical saturable absorption; bleaching decay; cavity dumped femtosecond dye laser; excited state kinetics; fast biexponential time behavior; femtosecond pump and probe experiments; fs pulses; low-band gap thiophene-based polymers; self-trapped excitons; Laser excitation; Laser mode locking; Optical polymers; Optical pumping; Optical resonators; Optical sensors; Photonic band gap; Probes; Pump lasers; Ultrafast optics;
Journal_Title :
Quantum Electronics, IEEE Journal of
