WebWe demonstrate that the designed structures provide highly efficient broadband (UV–near-IR, 250–1100 nm) antireflection of light, where the average total reflection coefficients of 4.4%, 15.0% and 7.9% were achieved on silicon surfaces processed by laser texturing, chemical etching and hybrid chemical/laser fabrication of structures, respectively. WebIn particular, optical analog computing has a good broadband performance, as it can be achieved based on the Pancharatnam–Berry phase. Therefore, our scheme can provide a flexible way to generate broadband structured light, and this is theoretically and experimentally demonstrated.
Optical analog computing enabled broadband structured light
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