Harvard researchers have developed a totally new type of laser that can reach terahertz frequencies offering short-range, high-bandwidth wireless communications, very-high-resolution radar, and spectroscopy.

A portable, miniature camera that can image polarization in a single shot has potential applications in machine vision, autonomous vehicles, security, atmospheric chemistry, and more.

In a breakthrough on the road toward ultra-high-speed Wi-Fi, Harvard researchers have demonstrated for the first time a laser that can emit microwaves wirelessly, modulate them, and receive external radio frequency signals.