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Effects of distributions of energy of transfer rates on spectral hole burning in photosynthetic pigment-protein complexes

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Effects of distributions of energy of transfer rates on spectral hole burning in photosynthetic pigment-protein complexes

Ahmouda, Somaya (2010) Effects of distributions of energy of transfer rates on spectral hole burning in photosynthetic pigment-protein complexes. Masters thesis, Concordia University.

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Abstract

To perform photosynthesis, plants, algae and bacteria possess well organized and closely coupled photosynthetic pigment-protein complexes. Information on energy transfer in photosynthetic complexes is important to understand their functioning and possibly to design new and improved photovoltaic devices. The information on energy transfer processes contained in the narrow zero-phonon lines at low temperatures is hidden under the inhomogeneous broadening. Thus, it has been proven difficult to analyze the spectroscopic properties of these complexes in sufficient detail by conventional spectroscopy methods. In this context the high resolution spectroscopy techniques such as Spectral Hole Burning are powerful tools designed to get around the inhomogeneous broadening. Spectral Hole Burning involves selective excitation by a laser which removes molecules with the zero-phonon transitions resonant with this laser. This thesis focuses on the effects of the distributions of the energy transfer rates (homogeneous line widths) on the evolution of spectral holes. These distributions are a consequence of the static disorder in the photosynthetic pigment-protein complexes. The qualitative effects of different types of the line width distributions on the evolution of spectral holes have been and explored by numerical simulations, an example of analysis of the original experimental data has been presented as well.

Divisions:Concordia University > Faculty of Arts and Science > Physics
Item Type:Thesis (Masters)
Authors:Ahmouda, Somaya
Pagination:lvi, 114 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M. Sc.
Program:Physics
Date:2010
Thesis Supervisor(s):Zazubovitch, Valter
ID Code:979445
Deposited By: Concordia University Library
Deposited On:09 Dec 2014 17:59
Last Modified:18 Jan 2018 17:49
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