Thirty years ago, Coullet et al. proposed that a special optical field exists in laser cavities
bearing some analogy with the superfluid vortex. Since then, optical vortices have been …

Liquid crystals (LCs) are omnipresent in living matter, whose chirality is an elegant and
distinct feature in certain plant tissues, the cuticles of crabs, beetles, arthropods, and …

Optical vortices, beams with spiral wavefronts and screw phase dislocations, have been
attracting increasing interest in various fields. Here, we theoretically propose and …

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 …

Abstract Recently discovered reflective Pancharatnam–Berry phase (PB phase) from chiral
anisotropic media (eg, cholesteric liquid crystal, CLC) has aroused great interest in the …

Geometric phase is a unifying and central concept in physics, including optics. As a matter of
fact, optics played a pivotal role from the inception of this new paradigm, as some of the first …

Multidimensional and large‐scale parallel manipulation of light, especially on‐demand
tailoring of the working frequency and spatial phase front, is highly pursued in modern …

Chirality describes mirror symmetry breaking in geometric structures or certain physical
quantities. The interaction between chiral structure and chiral light provides a rich collection …

Cholesteric liquid crystal (CLC) chiral superstructures exhibit unique features; that is,
polychromatic and spin‐determined phase modulation. Here, a concept for digitalized chiral …

The quest for interesting properties and phenomena in liquid crystals toward their
employment in nondisplay application is an intense and vibrant endeavor. Remarkable …