The rapid development of additive manufacturing has fueled a revolution in various research
fields and industrial applications. Among the myriad of advanced 3D printing techniques …

Recent research in topological photonics has not only proposed and realized novel
topological phenomena such as one‐way broadband propagation and robust transport of …

The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

Topological materials, whether in solid state, photonic or acoustic systems, or other
domains, are characterized by bulk topological invariants that remain unchanged as long as …

Topological photonics has attracted increasing attention in recent years due to the unique
opportunities it provides to manipulate light in a robust way immune to disorder and defects …

By using ab initio calculations and symmetry analysis, we define a class of Weyl phonons:
charge-four Weyl phonons (CFWPs) characterized by Chern number±4 in their acoustic …

Photonic crystals (PhCs) have emerged as a popular platform for realizing various
topological phases due to their flexibility and potential for device applications. In this article …

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 …

As a milestone in the exploration of topological physics, Fermi arcs bridging Weyl points
have been extensively studied. Weyl points, as are Fermi arcs, are believed to be only stable …

Topological effects are characterized by topological invariants, which are typically integer-
valued, and lead to robust quantized transport channels in space, time and other degrees of …