title: Intensity Dependence of the Fluorescence Lifetime of in vivo Chlorophyll Excited by a Picosecond Light Pulse.
abstract: New data on intensity-dependent lifetimes indicate that all previous in vivo fluorescence studies of chlorophyll by picosecond techniquies must be reinterpreted. Anomalously short lifetimes result from high-intensity effects due to exciton-excition annihilation processes. Measurements in Chlorella pyrenoidosa with single-pulse, low-intensity excitation indicate a longer "true" lifetime of 650 +/- 150 picoseconds.
authors.forename: A J
authors.initials: AJ
authors.lastname: Campillo
authors.forename: V H
authors.initials: VH
authors.lastname: Kollman
authors.forename: S L
authors.initials: SL
authors.lastname: Shapiro