Two-dimensional heterostructures (2D HSs) have emerged as a new class of materials
where dissimilar 2D materials are combined to synergise their advantages and alleviate …

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

All-optical switches have attracted attention because they can potentially overcome the
speed limitation of electric switches. However, ultrafast, energy-efficient all-optical switches …

Optical nonlinear functions are crucial for various applications in integrated photonics,
including all-optical information processing, photonic neural networks, and on-chip ultrafast …

Advances in photonic integrated circuits have recently enabled electrically reconfigurable
optical systems that can implement universal linear optics transformations on spatial mode …

Harnessing the full complexity of optical fields requires the complete control of all degrees of
freedom within a region of space and time—an open goal for present-day spatial light …

Low-dimensional piezoelectric semiconductor nanomaterials, such as ZnO and GaN, have
superior mechanical properties and can be integrated into flexible devices that can be …

Artificial neural networks are computational network models inspired by signal processing in
the brain. These models have dramatically improved performance for many machine …

Optical metasurfaces are regular quasi-planar nanopatterns that can apply diverse spatial
and spectral transformations to light waves. However, metasurfaces are no longer …

Optical metasurfaces, ie arrays of nanoantennas with sub-wavelength size and separation,
enable the manipulation of light-matter interactions in miniaturized optical components with …