Light from Electrically Driven QDs Shines on Silicon Photonics

Scientists at Los Alamos National Laboratory (LANL) demonstrated amplified spontaneous emission (ASE) from electrically pumped colloidal quantum dots (CQDs). The CQD-based lasing devices, developed after many years of work by the LANL team, use compact, continuously graded QDs with suppressed Auger recombination incorporated into a pulsed, high-current-density charge-injection structure that is supplemented by a low-loss photonic waveguide.