The world's first room-temperature continuous-wave UV-B laser diode on a sapphire substrate

Ultraviolet-B (UV-B) semiconductor lasers are highly sought for medical, biotechnology, and precision manufacturing applications; however, previous UV-B laser diodes were limited to pulsed operation ...
Nature

Vertical-Cavity Surface-Emitting Laser Arrays

Vertical-cavity surface-emitting laser (VCSEL) arrays represent a pivotal advancement in semiconductor laser technology. These devices emit light perpendicular to the wafer surface, offering benefits ...