David R. Smith

TL;DR: It is reported that the metal film induces a polarization to the single nanoparticle light scattering, resulting in a doughnut-shaped point spread function when imaged in the far-field.

TL;DR: This work applies finite, embedded coordinate transformations to the design of several devices, including a parallel beam shifter and a beam splitter, both of which are reflectionless and exhibit unusual electromagnetic behavior as confirmed by 2D full-wave simulations.

TL;DR: In this article, the sensitivity of this subwavelength focus to the slab material properties and periodicity was studied, and the connection to slab surface plasmon modes was made.

TL;DR: By leveraging metamaterials and compressive imaging, a low-profile aperture capable of microwave imaging without lenses, moving parts, or phase shifters is demonstrated and allows image compression to be performed on the physical hardware layer rather than in the postprocessing stage, thus averting the detector, storage, and transmission costs associated with full diffraction-limited sampling of a scene.

TL;DR: In this paper, the spectrum of plasmon resonances for metallic nanowires with a non-regular cross section, in the 20-50 nm range, was investigated numerically.