Faculty of Physics
M.V. Lomonosov Moscow State University
Regular Article

# An optical theorem for local sources in diffraction theory

## Yu.A. Eremin$^1$, A.G. Sveshnikov$^2$

### Moscow University Physics Bulletin 2015. 70. N 4. P. 258

• Article
Annotation

The optical theorem is generalized for the case of excitation of local structures by point sources. It is shown that an essential parameter, the Purcell factor, can be represented in analytical form. The results are generalized for the case of an interface between two semispaces. These results are of paramount impor tance for averaging of the coefficient of fluorescence amplification and the efficiency of an optical antenna by the position of an excitation source.

Approved: 2015 August 28
PACS:
42.25.-p Wave optics
42.25.Fx Diffraction and scattering
Rissian citation:
Ю.А. Еремин, А.Г. Свешников.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 2015. № 4. С. 43.
Authors
Yu.A. Eremin$^1$, A.G. Sveshnikov$^2$
$^1$Department of Computational Mathematics and Cybernetics, Moscow State University, Moscow, 119991 Russia
$^2$Department of Physics, Moscow State University, 119991 Russia

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