The transistor laser, invented by scientists at the University of Illinois at Urbana-Champaign, has been full of surprises. Researchers recently coaxed the device to reveal fundamental properties of ...

Photocouplers optically links, via transparent isolating material, a light emitter and a photodetector. Used as an interface between circuits with different ground potentials, photocouplers replace ...

A transistor used for amplifying or switching electronic signals is the metal-oxide-semiconductor field-effect transistor (MOSFET). Its significance came only during the mid and late 1960s although it ...