Department of Physics2024-11-0920101569-441010.1016/j.photonics.2009.12.0012-s2.0-77949489670http://dx.doi.org/10.1016/j.photonics.2009.12.001https://hdl.handle.net/20.500.14288/9656We have performed simulations to investigate the variable focusing and scanning capability of metallic nano-slit configurations. In a symmetric nanorod configuration inside an aperture with adjustable offset of the center rod, the focal position is found to be variable in the 0.5-3.5 mu m range. In a ladder configuration of the rods, the transmitted beam is found to be deflected up to 23 degrees. Horizontal displacement of rods allows for finer control of angular scanning up to 4 degrees. Such slit geometries offer the potential to be controlled by using nano-positioning systems for applications in dynamic beam shaping and scanning on the nanoscale.NanoscienceNanotechnologyMaterials sciencesMultidisciplinary design optimizationOpticsPhysicsJournal Article1569-4429277645800002Q37518