Abstract
A theory for solid state spectral hole burning is developed. The theory is valid for arbitrarily strong linear electron-phonon coupling within the Condon approximation which is accurate for strongly allowed optical transitions. Model calculations show that, from the dependence of the hole profile on the burn frequency, the contribution to the absorption linewidth from site inhomogeneity and the linear coupling parameters can be determined. The theory is used to analyze recent hole-burning data on the primary electron-donor states of isolated reaction centers of Rhodopseudomonas viridis, Rhodobacter sphaeroides and Photosystem I. The results show that all of these states are characterized by strong linear electron-phonon coupling (Huang-Rhys factor S ≳ 4) and large site inhomogeneous line broadening.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Bioenergetics
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