Design of a vortex metalens with high focusing efficiency using propagation phase.
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DOI: 10.1364/ao.464090
Abstract: Three vortex-focused beams are produced with linearly polarized light along the x or y axis at a wavelength of 1550 nm. First, a polarization-independent vortex metalens with a topological charge of three and focal length… read more here.
Keywords: vortex metalens; efficiency; design vortex; focusing efficiency ... See more keywords