The elastic analogs of topological insulators (TIs) have attracted substantial research
interest owing to their potential prospects in wave manipulation and low-loss transmission …

Using the trapped rainbow effect to slow down or even stop light has been widely studied.
However, high loss and energy leakage severely limited the development of rainbow …

For the study of topological phases in photonics, while quantum-Hall-type first-order chiral
edge states are routinely realized in magneto-optical photonic crystals, higher-order …

Due to the great application potential in programmable wave transportation, topological
metamaterials have gained enormous research attention in recent decades. This article …

In this work, we construct on-chip valley phononic crystal plates by building up triangular
silicon pillars on the silicon plate. We introduce the graded interface sliding for two typical …

Integrated frequency routers, which can guide light with different frequencies to different
output ports, are an important kind of nanophotonic device. However, frequency routers with …

Precise manipulation of the direction and redirection of vibrational wave energy is a key
demand in wave physics and engineering. We consider the paradigm of a finite framelike …

While higher-order photonic topological corner states typically are created in systems with
nontrivial bulk dipole polarization, they could also be created in systems with vanishing …

Topological photonics offers enhanced control over electromagnetic fields by providing a
platform for robust trap** and guiding topological states of light. The topological rainbow …

Rainbow trap** is of great significance for frequency-based wave splitting and broadband
wave attenuation. By recognizing the deficiency of prevailing gradient rainbow reflection …