Non-Condon vibronic coupling of coherent molecular vibration in MEH-PPV induced by a visible few-cycle pulse laser

摘要

The dependence of coherent vibrational amplitudes at 128 wavelengths in MEH-PPV (EL polymer) with 1-fs resolution gave the evidence of non-Condon effect due to ~1B_u-exciton strongly coupled with m~1A_g state essential in the third-order nonlinearity.