I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Infrared sensors that detect the short-wave infrared (SWIR) region can clearly recognize objects not only during the day and at night, but also in fog or smoke, making them a key component of future ...

Prof. Jong-Soo Lee’s team realizes a “hybrid photosensor” combining quantum dots and two-dimensional semiconductors - Proposes a low-cost, large-area platform to replace expensive conventional sensors ...