David A. Shapiro

Professor, D. Sci.

Novosibirsk State University and Institute of Automation and Electrometry, Novosibirsk, Russia

Surface Plasmons in a periodic array of Nanowires

A theory of surface plasmon modes in an array of nanowires will be presented. Unusual plasmon modes, excited by an evanescent wave in narrow slits of the periodic array of nanowires are found from Maxwell's equations by a modified boundary element method. On the basis of Floquet's theorem, the effective Green's function is derived by reducing the infinite structure to one elementary cell. The method is tested by simulation of the known Rayleigh-Wood's anomalies. The plasmon resonance is found to have a sharp dependence on the angle of incidence. The control over plasmons is promising for applications in "smart" adaptive plasmonic optical elements.

Short Bio: Prof. Shapiro holds the position of Director of Theoretical Physics Department, Novosibirsk State University and Head of Photonics Laboratory, Institute of Automation and Electrometry. He received D.Sci. in 1993, Ph.D. in1981. Dr. Shapiro has authored 95 referred journals and a textbook on Mathematical Physics (four editions in Russian and one in Spanish). His expertise is in mathematical physics, plasma physics, nonlinear spectroscopy, and nanophotonics.

Host: Dr. Drachev, vladimir.drachev@unt.edu