Reconfigurable Nano-Plasmonics Holography
Abstract
We report experimental, theoretical and simulation results on the development of plasmonic holography by Reconfigurable Surface Plasmon Phase Modulators from micro-electromechanical devices. High dielectric constant nanostructures brought into the vicinity of propagating surface plasmon polaritons (SPP) will retard the SPP phase. SPP wavefronts could be manipulated in controllable and reconfigurable ways if multiple nanostructures are used to modify the phase. Prototypes were designed and fabricated with bi-layer Au doubly clamped free floating nanostructures that were lithographically ion milled, released and electrostatically actuated. We have experimentally demonstrated: 1) plasmonic slot waveguide coupling including propagation through SiO beam supports and under actuated beams; 2) SP focusing by a two dimensional SiO2 lens; 3) electrical gold beam actuation at 1 MHz; 4) diffractive changes in outcoupled light when beams are actuated and 5) enhanced SP coupling by Fabry-Perot resonators. Theoretical and simulation work has guided the experiments and device design resulting in: 1) efficient production of SPs from gratings; 2) understanding changes in phase and losses from SP waveguides characterized by SP propagation between Au films; 3) enhancement of SP intensity by Fabry-Perot resonators ; 4) maximizing SP propagation in the presence of transverse and longitudinal slits and 5) integration of the above components in a SP modulator device.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2013
- Accession Number
- ADA583099
Entities
People
- Brian S. Dennis
- Girsh Blumberg
- Michael Haftel
Organizations
- Rutgers University–New Brunswick