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 …

Recent rapid progress in subwavelength optics and nanophotonics with dielectric structures
is underpinned by the physics of Mie resonances excited in nanoparticles with a high …

Rapidly growing demands for fast information processing have launched a race for creating
compact and highly efficient optical devices that can reliably transmit signals without losses …

The theory of electric polarization in crystals defines the dipole moment of an insulator in
terms of a Berry phase (geometric phase) associated with its electronic ground state,. This …

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 …

Scattering of electromagnetic waves by subwavelength objects is accompanied by the
excitation of electric and magnetic Mie resonances that may modify substantially the …

Resonant cavities are essential building blocks governing many wave-based phenomena,
but their geometry and reciprocity fundamentally limit the integration of optical devices. We …

Defect modes in two-dimensional periodic photonic structures have found use in diverse
optical devices. For example, photonic crystal cavities confine optical modes to …

Topological insulators are a new class of materials that exhibit robust and scatter-free
transport along their edges—independently of the fine details of the system and of the edge …