4 papers
Dynamic and static control of the optical phase of guided p-polarized light for near-field focusing at large angles of incidence
Danhong Huang, M. Michelle Easter, L. David Wellems +4
Both dynamic and static approaches are proposed and investigated for controlling the optical phase of a p-polarized light wave that is guided through a surface-patterned metallic s…
Nanogroove array on thin metallic film as planar lens with tunable focusing
L. David Wellems, Danhong Huang, T. A. Leskova +1
Numerical results for the distributions of light transmitted through metallic planar lenses composed of symmetric nanogroove arrays on the surfaces of a gold film are presented and…
Asymmetrically filled slits in a metal film that split a light beam into two depending on its wavelength
Danhong Huang, L. David Wellems
By applying a scattering-wave theory, the electromagnetic response of an arbitrary array of multiple slits perforated on a metallic film and filled with different slit dielectric m…
Analytic approach for calculating transmitted electromagnetic fields through a slot array in deep sub-wavelength regime
L. David Wellems, Danhong Huang
For the diffraction of an incident plane electromagnetic wave by a slotted metallic film, the previous analytical calculation for a single slot [Technical Phys. 50, 1076 (2005)] is…