METASURFACE STRUCTURE AND RELATED ARTICLE AND METHOD
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United States of America Patent
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May 23, 2024
app pub date -
Nov 7, 2023
filing date -
Nov 22, 2022
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Abstract
There is provided a metasurface structure including a plurality of sub-wavelength structures operable to manipulate optical signal/radiation to which metasurface structure is exposed to or irradiated with. The plurality of sub-wavelength structures is arranged such that the metasurface structure is operable to display a first image based on image data embedded or encoded by the sub-wavelength structures when the metasurface structure is exposed to or irradiated with a first optical signal/radiation, and the metasurface structure is operable to display a second image based on image data embedded or encoded by the sub-wavelength structures when the metasurface structure is exposed to or irradiated with a second optical signal/radiation different from the first optical signal/radiation. The first image includes an optical-printing image and the second image includes one or more holographic images.
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