Two color spectroscopy of the vibrational and vibronic dynamics of large molecules in solution, with 20 fs optical pulses

Riedle, Eberhard ; Ashworth, Stephen; Hasche, T.; Woerner, M. und Elsaesser, T. (1996): Two color spectroscopy of the vibrational and vibronic dynamics of large molecules in solution, with 20 fs optical pulses. Femtochemistry: Ultrafast Chemical and Physical Processes In Molecular SystemS, Lausanne, Switzerland, September 4 - 8, 1995. Chergui, M. (Hrsg.): In: Femtochemistry : ultrafast chemical and physical processes in molecular systems ; Lausanne, Switzerland, September 4 - 8, 1995, Singapore: World Scientific. S. 521-526

Abstract

The ultrafast dynamics of the dye molecule IR125 dissolved in ethylene glycol was studied. The sample was excited to high lying electronic states with frequency doubled Ti:sapphire radiation (30 fs duration; center wavelength 425 nm) and then probed with the fundamental (20 fs duration; centered at 850 nm) which overlapped with both the S-0-S-1 absorption and fluorescence bands. Three components were observed in the signals, bleaching coherent wave packet dynamics in the electronic ground state and a slower component due to relaxation to the S-1 state.

• Dokumententyp: Konferenzbeitrag (Paper)
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• Ort: Singapore
• Sprache: Englisch