LEDs Engineered With Colloidal Quantum Dots Can Function As Lasers

Researchers reach a critical milestone on the path to versatile colloidal quantum dot laser diodes by successfully demonstrating a quantum dot LED that also operates as an optically pumped laser.
Los Alamos scientists have incorporated meticulously engineered colloidal quantum dots into a new type of light emitting diodes (LEDs) containing an integrated optical resonator, which allows them to function as lasers. These novel, dual-function devices clear the path towards versatile, manufacturing-friendly laser diodes. The technology can potentially revolutionize numerous fields from photonics and optoelectronics to chemical sensing and medical diagnostics.