In this way, and almost by chance, researchers at TU Wien developed a novel microscopy technique that allows the refractive index of biological samples to be measured at a resolution far below what ...

Structures exhibiting variable refractive index could soon represent a simpler and more flexible alternative to metamaterials for making sophisticated high-performance lenses. Metamaterials are ...

A POSTECH research team has developed a transparent amorphous silicon that transmits visible light—which permits us to distinguish the colors of objects—enabling the development of paper-thin lenses ...

Gradient index lenses are optical lenses — often planar — which are used in specialized applications. Gradient index (or GRIN) optics encompasses optical effects produced by gradual variation of the ...

Subscribe to our newsletter for the latest sci-tech news updates. In this way, and almost by chance, researchers at TU Wien developed a novel microscopy technique that allows the refractive index of ...