New effective medium models and their applications

Thin films and many surfaces often have complex structures which are conveniently analysed for overall optical response by effective medium models. Examples from new deposition techniques and new exact theory are presented that highlight effects that are not predictable by many of the widely used si...

Full description

Saved in:
Bibliographic Details
Published inVacuum Vol. 46; no. 8; pp. 935 - 938
Main Authors Dligatch, S, Ng, MW, Smith, GB, Reuben, AJ, Radchik, AV, Vagov, AV
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.08.1995
Elsevier
Subjects
Composite materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
Dipoles
Theoretical study
Columnar structure
Thin films
Silver
Cermets
Composite materials
Anisotropy
SEM
Absorption spectra
Microstructure
Effective medium model
Permittivity
Aluminium oxides
Online AccessGet full text

Cover

More Information
Summary:Thin films and many surfaces often have complex structures which are conveniently analysed for overall optical response by effective medium models. Examples from new deposition techniques and new exact theory are presented that highlight effects that are not predictable by many of the widely used simple effective medium models. High order multipoles and associated multiple resonances play a key role and alter spectral response and transport properties markedly. The new theories can discriminate the short range forces between neighbouring pairs and longer range forces in chains and arrays. Experimental data on composite films show how changes in component distribution can strongly effect spectral absorptance in ways that are not predictable by standard dipole theories.
ISSN:0042-207X
1879-2715
DOI:10.1016/0042-207X(95)00076-3