Coherent internal conversion of pyrene revealed by pump-probe and ultrabroad 2D-UV spectroscopy

Pugliesi, Igor; Krebs, N. und Riedle, Eberhard (2013): Coherent internal conversion of pyrene revealed by pump-probe and ultrabroad 2D-UV spectroscopy. The European Conference on Lasers and Electro-Optic, Munich, Germany, 12–16 May 2013. Optics InfoBase Conference Papers. Optical Society of America.

Abstract

The 2D measurements on a light harvesting complex by Fleming and coworkers showed long lived oscillations [1] suggesting the existance of quantum-coherent effects in large macromolecules. In order to gain a deeper insight into these coherent phenomena, the intramolecular energy dissipation in restricted size molecules has to be investigated. Here we present a combined pump-probe and 2D-UV investigation of pyrene in solution, showing that in this molecule the coherent excitation of vibrational states survives the S2-S1 internal conversion (figure 1a).

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