Abstract

Plasmon technology is revolutionizing many industrial applications including biosensing, disease diagnosis, catalysis and molecular dynamics research, super-focusing and high-resolution imaging, and invisibility cloaking. In this talk, I present results on shape reconstructions of sub-wavelength objects from near field measurements in transverse electromagnetic scattering. This geometric inverse problem is notoriously ill-posed and challenging. We develop a novel reconstruction scheme of using plasmon resonances with significantly enhanced sensitivity and resolution. Both rigorous theoretical analysis and extensive numerical experiments are conducted to validate the promising features of our method.