Researchers provide a blueprint for a tiny device that can control the direction of light. Researchers have come up with a blueprint for a small and tunable device that can control the flow of light. Because it’s much tinier than existing technology, the invention could help shrink optical equipment to the nanoscale, and even enable superfast computers that run on photons instead of electrons. The  results  will be published in the journal  Physical Review Letters . READ FULL ARTICLE.