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The delicate nature of optical components requires very special handling and storage procedures to maximize their performance and lifetime. In the optical field, a long‐standing challenge is the cleaning of unavoidable contaminants during the daily use, especially for the coated elements and the biomedical diagnostic devices. Herein, the authors tackle this problem and experimentally demonstrate TiO...
Wide‐bandgap material based all‐dielectric metasurfaces have been ideal platforms for the realization of arbitrary phase control in visible spectrum. While TiO2 metasurfaces are very promising in broadband and high‐efficiency anomalous transmission, meta‐hologram, and meta‐lenses et al., the current realizations are strongly dependent on the sophisticated fabrication technique to fabricate TiO2 nano‐pillars...
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