Polarization has been a central concept to our understanding of optics and has found many applications ranging from quantum science to our daily life. 3D polarization structures possess peculiar ...

Optical discs store data as microscopic marks spread across a thin recording layer. That is essentially two-dimensional ...

Holograms have long held the promise of offering immersive three-dimensional (3D) experiences, but the challenges involved in generating them have limited their widespread use. Capitalizing on the ...

(Nanowerk Spotlight) A new generation of lenses ('metalenses') is starting to replace bulky curved lenses with simple, flat surfaces that use nanostructures to focus light. These flat surfaces ...