Avalanche photodiodes (APDs) represent a cornerstone of modern photodetection technologies, employing the impact ionisation process to multiply weak optical signals and thereby enhance sensitivity.

Detecting infrared light is critical in an enormous range of technologies, from remote controls to autofocus systems to self-driving cars and virtual reality headsets. That means there would be major ...

Researchers developed a type of infrared photodiode that is 35% more responsive at 1.55 m, the key wavelength for telecommunications, compared to other germanium-based components. Detecting infrared ...