Scientists have engineered innovative materials and three-dimensional designs for helix-shaped nanostructures that exhibit chirality at optical frequencies. This advancement opens up new possibilities for manipulating light and developing advanced optical technologies. Chirality, a property where an object and its mirror image are non-superimposable like left and right hands, is crucial for controlling how light interacts with materials, particularly at the nanoscale. By precisely crafting these helical nanostructures from specific materials using advanced 3D design techniques, researchers are gaining unprecedented control over this interaction within the optical spectrum. This breakthrough could pave the way for smaller, more efficient optical devices, novel sensors, and advanced materials with unique light-handling capabilities. The ability to tailor chirality at these frequencies has significant implications for fields such as advanced imaging, biosensing, and the development of metamaterials with bespoke optical properties.
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