Author/Authors :
Cerullo، نويسنده , , G and Lanzani، نويسنده , , G and Zavelani-Rossi، نويسنده , , M and De Silvestri، نويسنده , , S and Comoretto، نويسنده , , D and Moggio، نويسنده , , I and Dellepiane، نويسنده , , G، نويسنده ,
Abstract :
We report on sub-10 femtosecond time-resolved optical dynamics in polycarbazolyldiacetylene blended in a polyethylene matrix which is a prototype of single chain systems. Transmission difference data reveal an ultrafast kinetics which is assigned to the rapid internal conversion taking place following photoexcitation. Oscillations in the time-dependent traces are assigned to impulsive stimulated resonant Raman scattering, based on the comparison with cw Raman data.
