1994/11/04 by Alexander Matro, Matro, Alexander, Jeffrey A. Cina +1
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fluorescence Microscopy Techniques #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Laser-Matter Interactions and Applications #chem-ph #physics.chem-ph
paper · pdf · doi:10.48550/arxiv.chem-ph/9411004
Journal of Physical Chemistry, 44 pages
arxiv created 1994/11/04 · openalex publication_date 1994/11/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Calculations of time-resolved fluorescence anisotropy from a pair of chromophores coupled by an excitation transfer interaction are presented. For the purpose of investigating the effects of nuclear motion on the energy transfer and anisotropy, an illustrative model is developed that provides each chromophore with a single intramolecular vibrational mode. Account is taken of non-instantaneous excitation and time- and frequency-resolved detection. Effects of excitation pulse duration, detection window duration and frequency resolution, and excitation transfer coupling strength on the time-resolved anisotropy are examined in detail. Effects of vibrational relaxation and dephasing are also examined using a simplified Redfield description of the effects of coupling to a thermal bath.