SUPER-DISPERSIVE OFF-AXIS META-LENSES FOR HIGH RESOLUTION COMPACT SPECTROSCOPY
Abstract:
A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. The nanostructures together define the phase profile of the meta-lens. The phase profile achieves an off-axis focus. Each nanostructure is designed according to at least one design parameter of the nanostructure that imparts a phase shift of light passing through the nanostructure.
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