Hannover 2010 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 17: Biomolecules

MO 17.1: Vortrag

Mittwoch, 10. März 2010, 16:30–16:45, F 142

Fluorescence Excitation and Emission Spectroscopy on an individual light harvesting complex 2 from Rps. acidophila 10050 — •Ralf Kunz¹, Kõu Timpmann², Arvi Freiberg², Richard J. Cogdell³, and Jürgen Köhler¹ — ¹Experimental Physics IV, University of Bayreuth — ²Institute of Physics, University of Tartu — ³Molecular Biology, Faculty of Biomedical & Life Sciences, University of Glasgow

Low-temperature polarization dependent fluorescence-excitation spectra and fluorescence emission spectra are recorded from the same individual light harvesting 2 complexes from Rps. acidophila strain 10050. Combining fluorescence excitation and emission spectroscopy provides detailed information about the exciton band structure and the electron phonon coupling within these complexes. We have been able to identify the emission from the lowest exciton state (k=0).