Open AccessAdditional effective medium parameters for composite materials (excess surface currents)
Author(s) -
А. П. Виноградов,
A. I. Ignatov,
A. M. Merzlikin,
Sergei Tretyakov,
Constantin Simovski
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.006699
Subject(s) - refractive index , materials science , realization (probability) , composite number , optics , boundary (topology) , electrical impedance , boundary value problem , surface (topology) , physics , composite material , optoelectronics , mathematics , mathematical analysis , geometry , statistics , quantum mechanics
Modified boundary conditions for composite material are suggested. The modified RT-retrieval procedure yields bulk values of effective impedance and refractive index, which are independent of system size and boundary realization, whereas the conductivities of the excess surface currents depend on the property of the interface. Simultaneous treatment of all the possible realizations of the system removes the dependence. The accuracy of the latter procedure is the same as the usage of static effective parameters, namely k(eff)d.