A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all without mechanical motion. The design overcomes a long-standing efficiency-versus ...

Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, ...

Researchers at the University of Waterloo have developed a system that allows humans to ...