Seminar Event Detail

Applied Interdisciplinary Mathematics (AIM)

Date:  Friday, September 05, 2014
Location:  1084 East Hall (3:00 PM to 4:00 PM)

Title:  A multiscale method for optical responses of nano structures

Abstract:   We introduce a new framework for the multiphysical modeling and multiscale computation of nano-optical responses. The semi-classical theory treats the evolution of the electromagnetic field and the motion of the charged particles self-consistently by coupling Maxwell equations with Quantum Mechanics. To overcome the numerical challenge of solving high dimensional many body Schrodinger equations involved, we adopt the Time Dependent Current Density Functional Theory (TD-CDFT). In the regime of linear responses, this leads to a linear system of equations determining the electromagnetic field as well as current and electron densities simultaneously. A self-consistent multiscale method is proposed to deal with the well separated space scales. Numerical examples are presented to illustrate the resonant condition.


Speaker:  Di Liu
Institution:  Michigan State University

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