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| Open AccessSpatially-resolved insulator-metal transition for rewritable optical gratings
Optical gratings are typically composed of periodic grooves, but these suffer from issues with light scattering and are fragile. Here, a groove-less WO3 grating is demonstrated, which uses electron-proton synergistic doping to spatially tune a rewritable insulator-metal transition and coloration.
- Yuliang Chen
- , Changlong Hu
- & Chongwen Zou