Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia

Advanced Search

Journal of Applied Mechanics and Technical Physics

2002 year, number 1

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


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