Nanoscopic chiroptics studies the spin-dependent asymmetric light–matter interactions at
the nanoscale, where the asymmetry can stem from the intrinsic properties of materials …

Metamaterials are composed of periodic subwavelength metal/dielectric structures that
resonantly couple to the electric and/or magnetic components of the incident …

Active metasurfaces are emerging as the core of next-generation optical devices with their
tunable optical responses and flat-compact topography. Especially for the terahertz band …

Piezoelectric microsystems are of use in areas such as mechanical sensing, energy
conversion and robotics. The systems typically have a planar structure, but transforming …

Science and technologies based on terahertz frequency electromagnetic radiation (100 GHz–
30 THz) have developed rapidly over the last 30 years. For most of the 20th Century …

Compared with conventional optical elements, 2D photonic metasurfaces, consisting of
arrays of antennas with subwavelength thickness (the 'meta-atoms'), enable the …

Metasurfaces, two-dimensional equivalents of metamaterials, are engineered surfaces
consisting of deep subwavelength features that have full control of the electromagnetic …

Kirigami enables versatile shape transformation from two-dimensional (2D) precursors to 3D
architectures with simplified fabrication complexity and unconventional structural …

A broad range of dynamic metasurfaces has been developed for manipulating the intensity,
phase and wavefront of electromagnetic radiation from microwaves to optical frequencies …

Optical communications, laser science, microscopy and metrology demand control of light
polarization, which is also used as a probe of chemical and biological systems. Typically …