Conventional polarization beam splitters (PBSs) suffer energy loss and signal distortion due
to backscattering caused by disturbances. Topological photonic crystals provide …

Photonic analogs of topological crystalline insulators (PTCIs) that host pseudospin-locked
unidirectional helical interface states have promising applications for developing novel …

Topological photonic states are immune to structural defects and perturbations, which are
considered as a promising solution for realizing robust integrated optical devices. As an …

Topological rainbow concentrators (TRCs) have attracted intense attention due to their
capability of capturing photons with varying frequencies to distinct positions. However, the …

Recently, topological edge states and corner states have provided new ways to manipulate
light transmission and localization. Up to now, most works have focused on either transverse …

Valley photonic crystal (VPC) waveguides possess strong immunity to backward scattering
and robust transmission, originating from topologically protected edge states. Here, we …

Topological photonics facilitates the propagation of terahertz waves with extremely high
transmission and without backscattering, even in the presence of sharp corners and defects …

Polarization control is a major issue in topological quantum optics that limits reliable
generation and transmission of quantum states. This study presents what we believe to be a …

In this work, tunable acoustic energy concentrations are realized based on pseudo-spin
locking waveguides and topological rainbow trappings. Firstly, a tunable pseudo-spin …

Bending loss is one of the serious problems for constructing nanophotonic integrated
circuits. Recently, many works reported that valley photonic crystals (VPhCs) enable …