Harvard Builds Laser the Size of a Chip, Bright Enough to Map Invisible Worlds

Physicists at Harvard have developed a powerful new laser-on-a-chip that emits bright pulses in the mid-infrared spectrum – an elusive and highly useful light range for detecting gases and enabling new spectroscopic tools. The device, which packs capabilities of much larger systems into a tiny chip, doesn’t need any external components. It merges breakthrough photonic […] Read More