Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and ...

The invention of tiny devices capable of precisely controlling the direction and behavior of light is essential to the ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all ...

An unorthodox treatment called near-infrared light therapy, which shines powerful near-infrared light at the brain through ...

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: ...

Metasurfaces in which nonlocal light-matter interactions take place are a potentially useful variant of traditional ...

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 ...

Punch-drunk syndrome, boxer's madness, chronic traumatic encephalopathy (CTE). The name has changed over the years, but the cause is clear: repeated impacts can affect long-term brain health, with ...