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A New Stochastic Differential Equation Approach for Waves in a Random Medium by Dimitropoulos, Dimitris; Jalali, Bahram is a scholarly article available to read on EtoBox.

What is A New Stochastic Differential Equation Approach for Waves in a Random Medium about?

We present a mathematical approach that simplifies the theoretical treatment of electromagnetic localization in random media and leads to closed form analytical solutions. Starting with the assumption that the dielectric permittivity of the medium has delta-correlated spatial fluctuations, and using the Ito lemma, we derive a linear stochastic differential equation for a one dimensional random medium. The equation leads to localized wave solutions. The localized wave solutions have a localization length that scales inversely with the square of the frequency of the wave in the low frequency regime, whereas in the high frequency regime, this length varies inversely with the frequency to the power of two thirds.

Author

Dimitropoulos, Dimitris; Jalali, Bahram

Published

2008

Language

EN