|標題:||Ultrafast real-time vibronic coupling of a breather soliton in trans-polyacetylene using a laser pulse with few cycles|
Kobryanskii, Valerii M.
Department of Electrophysics
|關鍵字:||conducting polymers;electron-phonon interactions;high-speed optical techniques;solitons;spectral line intensity;vibrational modes;vibronic states|
|摘要:||Simultaneous modulations of both frequencies and amplitudes of C-C and C=C stretching vibration modes, due to dynamical coupling to a breather soliton, in trans-polyacetylene was successfully time resolved. The frequency shifts of both modes were in good agreement with a simulation based on the Su-Schrieffer-Heeger model. It was found that the intensities of transition dipoles changed due to the breather, whereas transition energies were dominantly modulated by C=C stretching mode as recent theoretical work predicted.|
|期刊:||PHYSICAL REVIEW B|