Experimental demonstration of resonant infrared up-conversion in hybrid metasurfaces, indicating significant resonance enhancement.
We experimentally demonstrate resonant infrared up-conversion from 3000nm to 770nm wavelength through sum frequency generation in hybrid metasurface consisting of optimally designed multilayer gallium selenide on silicon metasurface with square meta-atoms with 45-times resonance enhancement.
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Bag et al. (2025) studied this question.
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