Clausius-Mossotti Approximation for Nonlinear Composites with Coated Ellipsoidal Particles


An effective nonlinear dielectric permittivity of a heterogeneous composite structure consisting of coated ellipsoidal nonlinear nanoparticles embedded in a linear host medium has been theoretically studied. An expression for the effective dielectric permittivity tensor of such a system has been derived following the Clausius-Mossotti approximation. The conditions for the existence of electromagnetic bistability phenomenon in a single coated ellipsoidal particle with a nonlinear core and a metallic shell have been obtained. The numerical results show more prominent bistability phenomenon in more dense suspensions of nonlinear heterogeneous ellipsoids.

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The author is grateful to the Alexander von Humboldt Foundation for financial support in Germany and to Prof. B. U. Felderhof for fruitful discussions.

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Correspondence to Anatoliy O. Pinchuk.

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Pinchuk, A.O. Clausius-Mossotti Approximation for Nonlinear Composites with Coated Ellipsoidal Particles. MRS Online Proceedings Library 737, 312 (2002).

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