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Portrait of Tönu Pullerits; Photo: Kennet Ruona

Tönu Pullerits

Professor

Portrait of Tönu Pullerits; Photo: Kennet Ruona

Polarization single complex imaging of circular photosynthetic antenna.

Author

  • Sumera Tubasum
  • Daniel Thomsson
  • Richard Cogdell
  • Ivan Scheblykin
  • Tönu Pullerits

Summary, in English

Single complex fluorescence polarization spectroscopy is applied to study the peripheral light harvesting antenna (LH2) from photosynthetic purple bacterium Rhodopseudomonas (Rps.) acidophila. The measured two-dimensional excitation-emission polarization plots are used to construct geometric representation for the absorbing B800 and emitting B850 as ellipses. The shape and orientation of the ellipses is discussed in terms of tilted LH2 complexes where emission occurs from energetically disordered B850 excitons.

Department/s

  • Chemical Physics
  • NanoLund: Center for Nanoscience

Publishing year

2012

Language

English

Pages

41-45

Publication/Series

Photosynthesis Research

Volume

111

Issue

2012

Document type

Journal article

Publisher

Springer

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0166-8595