Researchers in France have developed a new way to create cylindrical vector (CV) beams by electrically exciting a “plasmonic lens” with low-energy, tunnel electrons. CV beams are important in a variety of research fields and technology applications, ranging from fundamental studies in quantum optics to more practical areas including optical microscopy, manipulating nano-objects, and in optical data storage and communication, to name but a few…
http://nanotechweb.org/cws/article/tech/58740