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  • 14th International Conference on Ultrafast Phenomena
  • Technical Digest (CD) (Optica Publishing Group, 2004),
  • paper ThD34

Photon-echo study of the electron-phonon coupling strength in molecules and molecular aggregates

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Abstract

A method for direct measurement of the system-bath coupling strength in molecules and molecular aggregates, based on the three pulse photon echo technique with non-trivial time ordering of interacting laser pulses, is proposed and realized. A surprisingly low magnitude of the Huang-Rhys factor (~ 1) was measured for the natural molecular aggregates (chlorosomes from the Cf. aurantiacus bacteria) at room temperature.

© 2004 Optical Society of America

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