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In article number 1606482, Wengang Wu, Weihua Zhang and co‐workers demonstrate the strong optical rotation effect of a single nanohelix, fabricated by a focused‐ion‐beam‐induced nano‐deformation technique. The fabrication method allows the nanometer‐thin metallic films to be folded in both directions at the nanoscale with minimum material damages. Using this technique, 3D nanohelixes with various...
3D structures with characteristic lengths ranging from nanometer to micrometer scale often exhibit extraordinary optical properties, and have been becoming an extensively explored field for building new generation nanophotonic devices. Albeit a few methods have been developed for fabricating 3D optical structures, constructing 3D structures with nanometer accuracy, diversified materials, and perfect...
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