IR sensors rely on an emitter (IR LED) and a detector (photodiode or photoresistor) to measure infrared light and convert it into electrical signals. There are two main types of sensors: ...

Figure 1: (a) Photography of the miniaturized mid-infrared spectral sensing platform based on metasurface thermal emitters; (b) Thermal image encoding/decoding results of different metasurface thermal ...

A Penn State team has shattered Kirchhoff’s 165-year-old law of thermal radiation. Their engineered metamaterial emits more ...

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 ...