Ultrafast real-time vibronic coupling of a breather soliton in trans-polyacetylene using a laser pulse with few cycles

作者：Teramoto Takahiro^*; Wang Zhuan; Kobryanskii Valerii M; Taneichi Takashi; Kobayashi Takayoshi

来源：Physical Review B, 2009, 79(3): 033202.

DOI：10.1103/PhysRevB.79.033202

• conducting polymers
• electron-phonon interactions
• high-speed optical techniques
• solitons
• spectral line intensity
• vibrational modes
• vibronic states

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.

• 出版日期2009-1