RESONANCE ENERGY TRANSFER BETWEEN A SPHERICAL NANOPARTICLE AND A J-AGGREGATE
A. A. Zabolotskii
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, prosp. Akademika Koptyuga, 1
Keywords: трубчатые J-агрегаты, квантовые точки, механизм Ферстера, нерадиационный перенос энергии, численное решение, tubular J-aggregates, quantum dots, Foster mechanism, nonradiation energy transfer, numerical solution
Abstract
This paper describes the nonradiation (Fester) energy transfer between a dye J-aggregate and closely located nanoparticles possessing the properties of two-level systems. The dynamics of the process are described by deriving the equations that characterize the density matrix dynamics in a two-level medium and the evolution of exciton pulses in an extended quasi-one-dimensional dye J-aggregate. It is shown that effective controlled resonant transfer of the energy stored in the QD is implemented in the system and manifested in the amplification of the exciton pulses. In turn, there is a possibility of the reverse process of exciton energy transfer in partial inversion of two-level transitions of QDs. The results of this paper are confirmed by the experimental data from the literature.
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