Dynamics of the depletion zone at a finite-sized imperfect trap in two dimensions: Photobleaching experiments and simulations: Photobleaching experiments and simulations

Hailin Peng, Sung Hyun Park, Panos Argyrakis, Haim Taitelbaum, Raoul Kopelman

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The kinetics of the growth of depletion zones around a static trap in an effective two-dimensional geometry were analyzed. The photobleaching of fluorescein dye by a focused laser beam was used for the investigation. It was shown that both the imperfect trapping strength and the finite trap size controlled the early-time behavior, while the trap shape does not much affect the dynamics of the θ distance. For different laser powers of the phototrap, the actual trapping efficiency was determined.
Original languageEnglish
Article number061102
Pages (from-to)611021-6110210
Number of pages5499190
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume68
Issue number6 1
StatePublished - 1 Dec 2003

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