5 papers · 1 filter
Tensor-driven geometric phase in nonlinear AlGaAs metasurfaces
Giorgio Guercio, Andrea Gerini, Kristina Frizyuk +5
Dielectric metasurfaces provide a unique platform for efficient harmonic generation and optical wavefront manipulation at the nanoscale. While several approaches are available for…
Near-infrared polarimetric imaging with nonlinear flat-optics
Evgenii Menshikov, Marco A. López Sánchez, Paolo Franceschini +4
A compact and broadband polarimetric imaging platform is presented, based on second-harmonic generation (SHG) in nonlinear flat-optics. The system employs periodic all-dielectric A…
Light structuring via nonlinear total angular momentum addition with flat optics
Evgenii Menshikov, Paolo Franceschini, Kristina Frizyuk +7
Shaping the structure of light with flat optical devices has driven significant advancements in our fundamental understanding of light and light-matter interactions, and enabled a…
Interface second harmonic generation enhancement in hetero-bilayer van der Waals nanoantennas
Andrea Tognazzi, Paolo Franceschini, Jonas Biechteler +5
Layered van der Waals (vdW) materials have emerged as a promising platform for nanophotonics due to large refractive indexes and giant optical anisotropy. Unlike conventional diele…
Nonlinear Analog Processing with Anisotropic Nonlinear Films
Michele Cotrufo, Domenico de Ceglia, Hyunseung Jung +4
Digital signal processing is the cornerstone of several modern-day technologies, yet in multiple applications it faces critical bottlenecks related to memory and speed constraints.…