Optical Nonlinearities of Fractal Composites

  • Vladimir M. Shalaev
Part of the Topics in Applied Physics book series (TAP, volume 82)


A theory of optical responses in fractal nanostructured composite materials is outlined. It is shown that the fractal geometry results in localization of plasmon excitations in the “hot” spots, where the local field can exceed the applied field by several orders of magnitude. The high local fields of the localized fractal modes result in dramatic enhancement of optical responses, making surface-enhanced spectroscopy of single molecules and nanocrystals feasible.


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© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Vladimir M. Shalaev
    • 1
  1. 1.School of Electrical and Computer EngeneeringPurdue UniversityWest LafayetteUSA

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