Applied and Interdisciplinary Mathematics Seminar

University of Michigan

Winter 2006
Friday, 14 April, 3:10-4:00pm, 1084 East Hall

Direct and Inverse Scattering Problems for Electromagnetic Wave Propagation

Gang Bao

Michigan State University


Abstract

Our recent progress in mathematical analysis and computation of time harmonic Maxwell's equations in complicated media will be discussed. For the direct problems, a recent regularity result will be introduced. Various types of boundary conditions will be reviewed to reduce the scattering problem into a bounded domain. In particular, the first convergence analysis of the recent Perfect Matched Layer (PML) approach for Maxwell's equations will be presented. For the inverse medium scattering, a continuation approach based on the uncertainty principle will be presented for multiple frequency boundary data. Issues on convergence will be addressed. Our on-going research on related topics and multiscale modeling of nano optics will be highlighted.