Princeton University

School of Engineering & Applied Science

Prucnal group’s research mentioned in IEEE Spectrum

January 22, 2016

Research done by Prof. Paul Prucnal’s group is mentioned in IEEE Spectrum.  The group is working on developing so-called neuromorphic chips consisting of networks of transistors that interact the way neurons do, allowing them to process analog input, such as visual information, more quickly and accurately than traditional chips can.  One of the challenges to building such chips is to get the laser to spike at picosecond time scales, one trillionth of a second. The team achieved this by placing a tiny piece of graphene inside a semiconductor laser. The graphene acts as a “saturable absorber,” soaking up photons and then emitting them in a quick burst.  More details can be found here.