Nano Archive

Optical properties of an atom in the presence of a two-nanosphere cluster

Klimov, Vasilii V and Guzatov, D V (2007) Optical properties of an atom in the presence of a two-nanosphere cluster. Quantum Electronics, 37 (3). pp. 209-230.

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Official URL: http://stacks.iop.org/1063-7818/37/209

Abstract

The optical properties of an atom located near a cluster of two arbitrarily arranged nanospheres of an arbitrary composition are studied. Changes in the spontaneous decay rates of excited states and emission frequency shifts are considered for different orientations of the dipole moment and different positions of the atom with respect to the cluster. It is shown that a two-nanosphere cluster can be used to control efficiently the spontaneous decay rates of excited states of the atom by changing the distance between spheres. It is found that spontaneous decay rates of the excited states of an atom located between silver nanospheres and having the dipole moment directed along the axis connecting the centres of spheres can increase by a factor of 105 and more when nanospheres are brought closer together.

Item Type:Article
ID Code:5344
Deposited By:Prof. Alexey Ivanov
Deposited On:06 Feb 2010 11:10
Last Modified:06 Feb 2010 11:53

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