Optical bistability in nonlinear composites with coated ellipsoidal nanoparticles
- Author
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Anatoliy Pinchuk 1
- Affiliations
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I. Physikalisches Institut der RWTH, D-52056 Aachen, Germany
1 Permanent address: Institute of Surface Chemistry, 03680 Kyiv, Ukraine.
- Journal
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Journal of Physics D: Applied Physics Create an alert RSS this journal
- Issue
- Citation
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Anatoliy Pinchuk 2003 J. Phys. D: Appl. Phys. 36 460
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- Abstract
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Nonlinear composite structures show great promise for use in optical switching, signal processing, etc. We derive an effective nonlinear dielectric permittivity of composite structures where coated ellipsoidal nonlinear particles are imbedded in a linear host medium. The derived expression for the effective dielectric permittivity tensor follows the Clasius–Mossotti approximation. We observe conditions for the existence of the optical bistability effect in a coated ellipsoidal particle with a nonlinear core and a metallic shell. Our numerical results show stronger bistability effects in more dense suspensions of nonlinear heterogeneous ellipsoids.
- PACS
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42.65.Pc Optical bistability, multistability, and switching, including local field effects
42.79.Sz Optical communication systems, multiplexers, and demultiplexers
- Subjects
- Dates
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Issue 5 (7 March 2003)
Received 3 October 2002
Published 14 February 2003
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Optical bistability in nonlinear composites with coated ellipsoidal nanoparticles
Anatoliy Pinchuk 2003 J. Phys. D: Appl. Phys. 36 460
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