Abstract

An analytical expression has been obtained for the average dielectric constant of a sample consisting of small coated spheres interspersed in a matrix, by solving the static boundary value problem and averaging the values of the electric field and polarization over the whole of the sample. Absorption IR data of MgO and NiO samples of this kind, produced by spray pyrolysis, embedded in a KBr matrix, are presented, and the theory developed is employed to fit the observed spectra.

Thermal-emission spectra of coagulated small MgO crystals

On Matumura and Masanori Cho
J. Opt. Soc. Am. 71(4) 393-396 (1981)

Resonant spectra of dielectric spheres

Peter R. Conwell, Peter W. Barber, and Craig K. Rushforth
J. Opt. Soc. Am. A 1(1) 62-67 (1984)

Absorption and scattering by bispheres, quadspheres, and circular rings of spheres and their equivalent coated spheres

Ri-Liang Heng, Ki Cheong Sy, and Laurent Pilon
J. Opt. Soc. Am. A 32(1) 46-60 (2015)

Absorption in multiple-scattering systems of coated spheres

Brian Stout, Christine Andraud, Sophie Stout, and Jacques Lafait
J. Opt. Soc. Am. A 20(6) 1050-1059 (2003)

T matrix of the homogeneous anisotropic sphere: applications to orientation-averaged resonant scattering

Brian Stout, Michel Nevière, and Evgeny Popov
J. Opt. Soc. Am. A 24(4) 1120-1130 (2007)