Spontaneous emission of an atom in a uniform and nonuniform spaces
Abstract
On purpose to establish the differences in probabilities of spontaneous radiative emission of an atom in a free space and in a nonuniform space with a nanospheroid the field strength E and the density of states rhoE of the mode n10 of a free space and of the TM0 nanocylinder mode are defined. A nanocylinder is an approximate model of a nanospheroid. The probability of a spontaneous transition is proportional to E2*rhoE in the both cases. It is found that the emission probability to the nanospheroid mode is hundreds times and more higher than the spontaneous emission probability in the free space.
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