U of A researchers developing world's first petahertz-speed phototransistor in ambient conditions
Mohammed Hassan (right), associate professor of physics and optical sciences, and Mohamed Sennary, a graduate student studying optics and physics, holding the commercial transistor they used to develop a petahertz-speed transistor.
University of Arizona Communications
University of Arizona scientists and international collaborators announced the development of "the world’s fastest petahertz quantum transistor" using laser pulses and graphene, paving the way for ultrafast computers in artificial intelligence, space, and medicine. "Going into the lab, you always anticipate what will happen – but the real beauty of science are the little things that happen, which lead you to investigate more," said U of A associate professor of physics and optical sciences Mohammed Hassan. "Once we realized that we had achieved this tunneling effect, we had to find out more."