Structural color has been regarded as an ideal alternative to pigments because of the
advantages of environmental friendliness, resistance to fading, and dynamic regulation …

Recent advances in low‐dimensional materials and nanofabrication technologies have
stimulated many breakthroughs in the field of nanophotonics such as metamaterials and …

Inducing a large refractive-index change is the holy grail of reconfigurable photonic
structures, a goal that has long been the driving force behind the discovery of new optical …

Optical metasurfaces enable us to engineer the electromagnetic space and control light
propagation at an unprecedented level, offering a powerful tool to achieve modulation of …

It remains a challenge to directly print arbitrary three-dimensional shapes that exhibit
structural colors at the micrometer scale. Woodpile photonic crystals (WPCs) fabricated via …

In the last decades, metasurfaces have attracted much attention because of their
extraordinary light-scattering properties. However, their inherently static geometry is an …

The antimony-based chalcogenide Sb 2 Se 3 is a rapidly emerging material for photonic
phase change applications owing to its ultra-low optical losses at telecommunication …

In this paper, we discuss flat programmable multi-level diffractive lenses (PMDL) enabled by
phase change materials working in the near-infrared and visible ranges. The high real part …

Janus metasurface holography with asymmetric transmission characteristics provides new
degrees of freedom for multiplexing technologies. However, earlier metasurfaces with …

Graphene absorbers have attracted lots of interest in recent years. They provide huge
potential for applications such as photodetectors, modulators, and thermal emitters. In this …