Aartsma, T.J.

Ketelaars, M.

Köhler, J.

Oijen, A.M. van

Schmidt, J.

English

Using single-molecule detection techniques, fluorescence-excitation spectra from the B800 absorption band of individual light-harvesting complexes (LH2) of purple bacteria at 1.2 K were recorded. The spectra show distributions of narrow absorption lines that originate from excitations that are mainly localized on individual B800 bacteriochlorophyll a molecules. Spectroscopic details normally hidden under the inhomogeneous broadening, such as the degree of disorder in the pigment rings, the excited state dynamics and the energy transfer can be obtained

University of Groningen

Spectroscopy of individual LH2 complexes of Rhodopseudomonas acidophila:localized excitations in the B800 band

https://pure.rug.nl/ws/files/14694537/1999ChemPhysvOijen.pdf

Spectroscopy of individual LH2 complexes of Rhodopseudomonas acidophila:localized excitations in the B800 band

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University of Groningen