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Fractal nanostructured materials, such as nanocomposites and self-affine thin films, are shown to possess giant optical nonlinearities. The enhancement results from the sub-wavelength localization of dipolar modes and strong local field fluctuations.
Persistent link: https://www.econbiz.de/10010587380
percolating systems, the new length competes with the percolation correlation length for dominance over the critical behavior. The … divergence of each of these lengths is associated with a different fixed point. In metallic composites with a periodic …
Persistent link: https://www.econbiz.de/10010587382
particular the interaction with electromagnetic field. This modelling makes use of the percolation model and the representation …
Persistent link: https://www.econbiz.de/10010586691
inhomogeneity at resonance and percolation threshold. We predict an anomalous scattering of the incident light as well as … the optical to far infrared region and in a range of concetrations around the percolation threshold which depends on … percolation length ξp. The main object of this paper is to illustrate this situation. …
Persistent link: https://www.econbiz.de/10011057050