Optical field at the center of a sphere
N. N. Belov, N. G. Belova*
ATECH KFT Scientific-and-Research Company, Budapest 1126, Hungary *"Aerozol' Tekhnologiya" Company, Moscow 119285
Abstract
The paper gives an exact formula for
determining the intensity of an optical
field at the center of a spherical
particle of arbitrary radius obtained by
evaluating an indeterminate form of the
0/0 type of Mie theory for the electric-
field components at the center of the
sphere. This formula is valid for
arbitrary values of the complex
refractive index of the particle
material and arbitrary wavelengths of
the incident radiation. An approximation
for large particles and two
approximations for particle sizes less
than 10-4 cm are obtained.
The solution obtained for the optical-
field intensity at the center of small
particles coincides with the classical
Lorentz formula for local fields. P.
171-173
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