When light reflects off a surface, not all of it reflects off at the same wavelength; some photons impart a portion of their ...

Once upon a time, there was a bit of a fad for fingerprint authentication in laptops and desktop computers. It has long since ...

Inductive sensors are non-contact proximity sensors that detect ferrous targets, ideally ones made of mild steel thicker than one millimeter. They consist of four major components: a ferrite core with ...

Femtosecond laser micromachining was first demonstrated in 1994, when a femtosecond laser was used to ablate micrometre-sized features on silica and silver surfaces 1,2. In less than ten years the ...

Laser material processing uses high-intensity light beams in material fabrication. This can include cutting, engraving, drilling or welding metals. It can also include cleaning materials with lasers.