Accidental degeneracy plays an important role in the generation of novel band dispersions.
Photonic structures that exhibit an accidental Dirac-like conical dispersion at the center of …

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 …

Ultracold quantum gases serve as ideal models for the characterization of universal
properties of a variety of phenomena in quantum systems. In a formal analogy to …

We show that point defects in two-dimensional photonic crystals can support bound states in
the continuum (BICs). The mechanism of confinement is a symmetry mismatch between the …

In recent years, photonics has proven itself as an excellent platform for emulation of
relativistic phenomena. Here, we show an example of relativistic-like trapping in photonic …

Conventionally, the behavior of light transmission in optical devices is based on total internal
reflection or photonic bandgaps. The Dirac mode is regarded as another guiding …

In this study, the two-dimensional (2D) triangular lattice metallic photonic crystals (PCs) in
visible and infrared bands have been utilized to achieve light confinement at the Dirac …

摘要光子晶体由于具有可设计, 可调谐以及对光的超常调控等优异性能, 近年已成为重要的光学
拓扑态研究平台. 狄拉克(Dirac) 锥型线性色散的奇异特性可实现丰富的物理现象, 诸如Dirac …

随机激光器由于其独特的结构和低相干性, 在无散斑成像, 传感, 光治疗等领域中得到广泛应用.
随机激光器的反馈机制是无序介质引入的光散射, 高阈值和无方向性是其主要缺点 …

As one of the research frontiers of photonics in recent years, topological photonics plays an
essential role in fields of both fundamental physics and device applications. Topological …