The Use of Resonant Light Scattering as a Probe of Picosecond and Subpicosecond Relaxation and Dephasing Times in the Excited State

作者: J. M. Friedman

DOI: 10.1007/978-3-642-67099-2_32

关键词: Excited stateAbsorption (electromagnetic radiation)Absorption spectroscopyLight scatteringPicosecondMaterials scienceDephasingRelaxation (NMR)Line (formation)Atomic physics

摘要: Most biological macromolecules exhibit optical absorption lineshapes that are spectrally broad even at liquid He temperatures. Because line broadening mechanism might originate from relaxation and dephasing processes of physical importance, it is interest to deconvolute the various mechanisms contributing a given broadened transition. When caused by occurring on sub-picosecond timescale no longer routinely feasible apply elegant time resolved non-linear techniques in determination rates. Instead, these rates more effectively determined monitoring spectrum resonant scattered monochromatic light [1]. In this paper will be shown scattering can used expose origin visible ferrocyto-chrome c room temperature

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