title: Control of photo-induced voltages in plasmonic crystals via spin-orbit interactions.
abstract: There is wide interest in understanding and leveraging the nonlinear plasmon-induced potentials of nanostructured materials. We investigate the electrical response produced by spin-polarized light across a large-area bottom-up assembled 2D plasmonic crystal. Numerical approximations of the Lorentz forces provide quantitative agreement with our experimentally-measured DC voltages. We show that the underlying mechanism of the spin-polarized voltages is a gradient force that arises from asymmetric, time-averaged hotspots, whose locations shift with the chirality of light. Finally, we formalize the role of spin-orbit interactions in the shifted intensity patterns and significantly advance our understanding of the physical phenomena, often related to the spin Hall effect of light.
authors.forename: Nicholas V
authors.initials: NV
authors.lastname: Proscia
authors.forename: Matthew
authors.initials: M
authors.lastname: Moocarme
authors.forename: Roger
authors.initials: R
authors.lastname: Chang
authors.forename: Ilona
authors.initials: I
authors.lastname: Kretzschmar
authors.forename: Vinod M
authors.initials: VM
authors.lastname: Menon
authors.forename: Luat T
authors.initials: LT
authors.lastname: Vuong