[OPTICAL REVIEW Vol. 6, No. 5 (1999) 410-414]
Dispersion Theory for Two-phase Layered-Geometry Nanocomposites
Kai-Erik PEIPONEN1 and Toshimitsu ASAKURA2
1Department of Physics, University of Joensuu, P.O. Box 111, FIN-80101 Joensuu, Finland, 2Faculty of Engineering, Hokkai-Gakuen University, Sapporo, Hokkaido, 064-0926 Japan
(Received March 29, 1999; Accepted June 4, 1999)
A dispersion theory for linear optical properties of two-phase layered-geometry nanocomposites is presented. Generalized dispersion relations and sum rules are stated using the results from complex analysis. The concept of Lorentzian linear susceptibility is exploited in theoretical treatment of the effective linear susceptibility of the nanocomposite. The meromorphism of total reflectance in the case of effective meromorphic nonlinear susceptibility was observed.
Key words : nanocomposite, dispersion, Kramers-Kronig relations, sum rules, nonlinear susceptibility