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Proceedings Paper

Local fields and optical properties of metal-dielectric films
Author(s): Andrey K. Sarychev; Vladimir M. Shalaev
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Paper Abstract

Optical response of metal-dielectric inhomogeneous films is considered. The generalized Ohm's law is formulated that relates electric and magnetic fields outside to the currents inside the film. Computer simulations, with the use of the generalized Ohm's law show that the local electric and magnetic fields experience giant spatial fluctuations. The fields are localized in small spatially separated peaks: electric and magnetic hot spots. In these hot spots the local fields (both electric and magnetic) exceed the applied field by several orders of magnitude. It is also shown that transmittance of a regular modulated metal film is strongly enhanced when the incident wave is in resonance with surface polaritons in the film. A new optical switch based on this effect is proposed.

Paper Details

Date Published: 9 July 2001
PDF: 12 pages
Proc. SPIE 4467, Complex Mediums II: Beyond Linear Isotropic Dielectrics, (9 July 2001); doi: 10.1117/12.432933
Show Author Affiliations
Andrey K. Sarychev, New Mexico State Univ. (United States)
Vladimir M. Shalaev, New Mexico State Univ. (United States)


Published in SPIE Proceedings Vol. 4467:
Complex Mediums II: Beyond Linear Isotropic Dielectrics
Akhlesh Lakhtakia; Werner S. Weiglhofer; Ian J. Hodgkinson, Editor(s)

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