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Ultralow loss visible light metamaterials assembled by metaclusters
Optical metamaterials give birth to the control and regulation of light. However, because of strong energy dissipation and fabrication difficulty in meta-atoms, low-loss isotropic three dimensional negative index metamaterials (NIMs) in the visible spectrum has long been regarded as an extremely challenging. Here, we report an ultralow loss isotropic metamaterials for visible light and its inverse Doppler effect. The ball-thorn-shaped metaclusters with symmetrical structure consisting of thedoi:10.1515/nanoph-2022-0171 fatcat:74envryikrfotdnv7wi2uizcx4