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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
  • Technical Digest (Optica Publishing Group, 2003),
  • paper QFB4

Photosynthetic light-harvesting by carotenoids: detection of an intermediate excited state

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Abstract

We present the first direct evidence of an intermediate excited state mediating internal conversion in carotenoids. Transition to this state occurs within ≈50 fs. This result changes the description of the primary step in photosynthesis.

© 2003 Optical Society of America

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