Scientists at the U.S. Naval Research Laboratory have recently demonstrated a new nonmechanical chip-based beam steering technology that offers an alternative to costly, cumbersome and often unreliable and inefficient mechanical gimbal-style laser scanners. The chip, known as a steerable electro-evanescent optical refractor, or SEEOR, takes laser light in the mid-wavelength infrared (MWIR) as an input…

An interdisciplinary team of scientists at the U.S. Naval Research Laboratory (NRL) have reported the first demonstration of metallic spin filtering at room temperature using ferromagnet-graphene-ferromagnet thin film junction devices — spin is a fundamental property of electrons, in addition to charge, that can be used to transmit, process and store data. “The spin filtering…