title: Anomalous growth of the depletion zone in the photobleaching trapping reaction.
abstract: We study the anomalous growth of the depletion zone at a single trap, as observed in a photobleaching trapping reaction in confined geometry. We provide experimental evidence for a nonuniversal growth of this depletion. We also find an early-time behavior of the depletion zone, owing to the finite size of the trap. Various laser powers are used in order to study the effects of trapping strength, interpreted theoretically in terms of an imperfect trap. The results are supported by numerical calculations. Comparison with other trapping reactions provides insight into finite-size traps.
authors.affiliation: Department of Chemistry, University of Michigan, Ann Arbor 48109-1055, USA.
authors.forename: Sung Hyun
authors.initials: SH
authors.lastname: Park
authors.forename: Hailin
authors.initials: H
authors.lastname: Peng
authors.forename: Raoul
authors.initials: R
authors.lastname: Kopelman
authors.forename: Panos
authors.initials: P
authors.lastname: Argyrakis
authors.forename: Haim
authors.initials: H
authors.lastname: Taitelbaum