Light. What is it? What isn't it? Such are the questions left to the experts at Caltech, which have just concocted a new device that can focus light to a point just a few nanometers wide. That kind of precision has never been done at scale, and the university is hoping that the invention could help "pave the way for the next-generation of communication, computing, and even imaging technology." In lay terms, it could allow increased bandwidth for fiber optics, and since it's built on-chip, integration with existing doodads shouldn't be too much of a hassle. Previous
