AbstractHalide perovskites have attracted tremendous attention as semiconducting
materials for various optoelectronic applications. The functional metal-halide
octahedral units and their spatial arrangements play a key role in the
optoelectronic properties of these materials. At present, most of the efforts
for material exploration focus on substituting the constituent elements of
functional octah... hiện toàn bộ
Spatial inhomogeneities in the polarization of a light field can show
fascinating effects in focusing, propagation, illumination, and imaging. This
paper provides examples of these effects and describes how deterministic stress
on the periphery of an optical element can be used in fundamental studies of
beam propagation, as well as applications such as polarimetry.