Semiconductor lasers are small solid-state lasers that use a semiconductor as an active medium to amplify light through stimulated emission at inter-band transitions under high electron density in the ...

Symmetric and antisymmetric band-edge modes exist in distributed feedback surface-emitting semiconductor lasers, with the dominant difference being the radiation loss. Devices generally operate on the ...

A research team has successfully developed a new technology that converts the conductivity properties of semiconductors with just one laser process.

A single laser pulse can instantly switch semiconductor conductivity, turning titanium oxide into a p type material and replacing long complex manufacturing steps.

In a new study, researchers at Osaka University have created the world's first compact, tunable-wavelength blue semiconductor laser, a significant advancement for far-ultraviolet light technology with ...

High power: schematic of the Berkeley Surface Emitting Laser (BerkSEL) showing the pump beam (blue) and the lasing beam (red). The hexagonal photonic crystal is also illustrated. (Courtesy: Kanté ...

Scientists at the University of St. Andrews, UK, say they are leading a “significant breakthrough” in a decades-long challenge to develop compact organic laser technology. While many lasers used for ...