Editorial for special issue on complex optical fields

<正>Recently there is an increasing interest in tailored optical fields with complex amplitude,phase and polarization spatial distributions,as well as specifically designed temporal waveforms.Scalar optical vortices carrying orbital angular momentum and vectorial vortices such as radially and azimuthally polarized beams are among the most intensively studied examples.Comprehensive summaries of earlier developments can be found in several recent articles and edited     

Editorial for special issue on advances in metasurfaces

正Metasurface refers to a type of artificial thin film materials with sub-wavelength features that can generate the desired and/or new optical phenomena.The past decade has witnessed significant advances in the metasurface,ranging from fundamental physics to nanomanufacturing methods and practical applications.Typical research efforts include wavefront engineering and detection[e.g.,Yu,Science 334,333(2011);Capasso,Nat.Commun.3,1278(2012)],flat optics     

Editorial for special issue on extraordinary 2D-materials-based nanophotonics

正The emergence of new materials can push scientific development and even lead to a new industrial revolution. The discovery of graphene has attracted more and more attention from society due to their excellent optics and electricity properties. Graphene has been widely used in optoelectronic devices, such as an optical modulator, polarizer, photoelectric detector, and ultrafast laser. In addition, there is a remarkable transition towards other nanomaterials in recent years.Apart from topological insulators (TIs), transition metal dichalcogenides (TMDs), and monoelemental two-dimensional