title: Bimolecular quenching of excitons and fluorescence in the photosynthetic unit.
abstract: The recent results of Campillo et al. and Mauzerall on the quenching of the fluorescence of chlorophyll a in Chlorella pyrenoidosa as a function of the intensity of the laser excitation pulses are rationalized by applying a model invoking singlet-singlet exciton annihilation.
mesh_terms: D002708:Chlorella; D002734:Chlorophyll; D005453:Fluorescence; D007834:Lasers; D010775:Photic Stimulation
chemical_list: D002734:Chlorophyll