I tested a near-infrared light device that attaches to my computer, mimics the sun, and allegedly improves mood and focus. Did it work?

With layers of sensors, control modules, and software managing everything from engine performance to safety systems, today’s ...

Abstract: The monitoring of current in real time is crucial for the maintenance of the power grid system. In this paper, we propose and experimentally demonstrate a novel fiber optic current sensor ...

Abstract: This article presents a 57.6-μW mechanically flexible active-matrix imaging system based on a 4 × 5 array of light sensors, each composed of a photodetector (PD) using a light-sensitive ...