Local-Field Distribution in Random Dielectric Media
نویسندگان
چکیده
منابع مشابه
Local field distribution in random metal–dielectric films; theory and experiment
The local field properties of metal–dielectric films are investigated in terms of the probability distribution function (PDF). For metal coverage p; close to the percolation threshold we obtain a wide, lognormal PDF which for low metal concentrations gradually transforms into a scaling, power-law distribution function. Strong enhancement of the local fields in a broad spectral range is verified...
متن کاملPlasmon localization and local field distribution in metal-dielectric films.
An exact and very efficient numerical method for calculating the effective conductivity and local-field distributions in random R-L-C networks is developed. Using this method, the local-field properties of random metal-dielectric films are investigated in a wide spectral range and for a variety of metal concentrations p. It is shown that for metal concentrations close to the percolation thresho...
متن کاملElectric-field fluctuations in random dielectric composites
When a composite is subjected to a constant applied electric, thermal, or stress field, the associated local fields exhibit strong spatial fluctuations. In this paper, we evaluate the distribution of the local electric field ~i.e., all moments of the field! for continuum ~off-lattice! models of random dielectric composites. The local electric field in the composite is calculated by solving the ...
متن کاملLocal volume fraction fluctuations in random media
Although the volume fraction is a constant for a statistically homogeneous random medium, on a spatially local level it fluctuates. We study the full distribution of volume fraction within an observation window of finite size for models of random media. A formula due to Lu and Torquato for the standard deviation or ‘‘coarseness’’ associated with the local volume fraction j is extended for the n...
متن کاملEffective dielectric tensor for electromagnetic wave propagation in random media
media M. C. Rechtsman and S. Torquato Department of Physics, Princeton University, Princeton, New Jersey 08544, USA Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA; Program in Applied and Computational Mathematics, Princeton, New Jersey 08544, USA; Princeton Institute for the Science and Technology of Materials, Princeton, New Jersey 08544, USA; Princeton Center ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1988
ISSN: 0031-9007
DOI: 10.1103/physrevlett.60.227