Quantum diode converts light to electrical signals

interestingengineering.com

Researchers have developed a small quantum diode that acts like a sensory neuron, converting light into electrical signals. This device uses quantum phenomena to enhance computing and optical sensing. The diode is made from a III–V semiconductor structure, combining elements from Groups 3 and 5 of the periodic table. It is designed to detect near-infrared light efficiently. When light intensity exceeds a specific level, the device experiences negative differential resistance, producing large voltage oscillations. This process generates rhythmic electrical bursts, similar to how biological neurons function.


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