A tiny laser comprising an array of nanoscale semiconductor cylinders (see image) has been made by an all-A*STAR team1. This is the first time that lasing has been achieved in non-metallic nanostructures, and it promises to lead to miniature lasers usable in a wide range of optoelectronic devices. Microscale lasers are widely used in devices … Continue reading Ultracompact laser has been made using nanoscale semiconductor columns