Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for
decades—from enabling high-speed optical communications that form the backbone of the …

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 …

Abstract Effects connected with the mathematical theory of knots emerge in many areas of
science, from physics, to biology. Recent theoretical work discovered that the braid group …

The nontrivial topological features in the energy band of non-Hermitian systems provide
promising pathways to achieve robust physical behaviors in classical or quantum open …

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 …

Abstract The era of Big Data requires nanophotonic chips to have large information
processing capacity. Multiple frequency on-chip nanophotonic devices are highly desirable …

The concept of synthetic dimensions has generated interest in many branches of science,
ranging from ultracold atomic physics to photonics, as it provides a versatile platform for …

Measuring topological invariants is an essential task in characterizing topological phases of
matter. They are usually obtained from the number of edge states due to the bulk-edge …

Topological phases of matter have attracted significant attention in recent years, due to the
unusual robustness of their response to defects and disorder. Various research efforts have …

Topological photonics is a new and rapidly growing field that deals with topological phases
and topological insulators for light. Recently, the scope of these systems was expanded …