A silicon bar nanostructure metalens on CaF2 substrate delivers broadband achromatic focusing across 1800-2300 nm with focal-length variation limited to 6 percent per FDTD simulations.
A novel fabrication technique for high-aspect-ratio nanopillar arrays for sers application
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Broadband Achromatic Metalens for the Short-Wave Infrared
A silicon bar nanostructure metalens on CaF2 substrate delivers broadband achromatic focusing across 1800-2300 nm with focal-length variation limited to 6 percent per FDTD simulations.