EFFECT OF SPATIAL NON‐UNIFORMITY OF ILLUMINATION IN NON‐LINEAR INTENSITY‐DEPENDENT PHOTO PHYSICAL EXPERIMENTS. APPLICATION TO SOME FLUORESCENCE YIELD MEASUREMENTS IN PHOTOSYNTHETIC SYSTEMS

Guy Paillotin, Nicholas E. Geacintov, Jacques Breton

Research output: Contribution to journalArticle

Abstract

The spatial non‐uniformity of a light beam must be taken into account in interpreting phenomena which depend on the light intensity in a non‐linear manner. Omission of this effect may lead to incorrect values of parameters obtained from a fitting of theoretical curves, which describe the dependence of a given phenomenon on light intensity, to the experimental data. The effect of spatial non‐uniformity of excitation light beams is illustrated utilizing non‐linear intensity‐dependent fluorescence phenomena in photosvnthetic svstems and a Gaussian light beam profile.

Original languageEnglish (US)
Pages (from-to)475-478
Number of pages4
JournalPhotochemistry and photobiology
Volume37
Issue number4
DOIs
StatePublished - Apr 1983

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry

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