Planar optical elements that can manipulate the multidimensional physical parameters of
light efficiently and compactly are highly sought after in modern optics and nanophotonics. In …

Photoalignment of liquid crystals by using azo dye molecules is a commonly proposed
alternative to traditional rubbing alignment methods. Photoalignment mechanism can be …

Terahertz (THz) band is expected to satisfy the ever‐increasing demand for high‐capacity
wireless data transfer. Multifunctional photonic devices with compactness and low loss are …

Volume Bragg gratings (VBGs) have many applications, including filters, wavelength
multiplexing devices, and see-through displays. As a kind of VBGs, polarization volume …

Smart windows which switch between transparent and scattering states can be used not
only as privacy window in buildings and cars, but also as information displays, and …

Featuring a nontrivial coupling between the orbital angular momentum of light and spatially
inhomogeneous polarization, hybrid-order Poincaré sphere (HyOPS) beams have recently …

We propose theoretically and verify experimentally a method of using electrically tunable
liquid crystal q-plate and wave plate for generating arbitrary vector vortex beams on a hybrid …

Beam steering is widely used in aerospace, laser communication, vehicle-mounted ridar,
optical information processing, biomedicine and military confrontation. Non-mechanical …

An all-liquid-crystal device for fast orbital angular momentum encoding and optical vortex
beam steering is proposed and demonstrated. It is a combination of a cascaded spin …

A liquid crystal forked vortex lens integrated with Pancharatnam-Berry phase is proposed
and demonstrated via a dynamic photo-patterning technique. The forked vortex lens can …