World’s Smallest Laser Paves Way for 100 Terahertz CPUs
Technically, it’s not a laser, but something called spaser. Instead of photons, it uses plasmons, a particle only 44 nanometers across. It could push CPUs’ speeds to hundreds of terahertz, according to Mark Stockman, professor of physics at Georgia State: The spaser works about a thousand times faster than the fastest transistor, while having the…