Wiener bounds for effective complex permittivity of multicomponent composites are treated by use of barycentric coordinates, a convex hull, and conformal mapping in a complex plane. Depending on the complexity of the multiphase system, the bounds provide singly or multiply connected regions that can be used in estimating the limits of the effective permittivity of the composite. The present modeling is important, e.g., in estimating spectral properties of nanocomposites in engineering and nanomedicine and in terahertz-based security imaging.
© 2006 Optical Society of America
Original Manuscript: March 6, 2006
Revised Manuscript: April 28, 2006
Manuscript Accepted: April 28, 2006
Kai-Erik Peiponen and Evgeny Gornov, "Description of Wiener bounds of multicomponent composites by barycentric coordinates," Opt. Lett. 31, 2202-2204 (2006)