Researchers Develop First Electrically Injected Laser

Sunday, August 9, 2020 - 14:48
 Laser

Materials science researchers have developed the first electrically injected laser made with germanium tin.

Used as a semiconducting material for circuits on electronic devices, the diode laser could improve micro-processing speed and efficiency at much lower costs, Phys.org reports.

In tests, the laser operated in pulsed conditions up to 100 kelvins, or 279 degrees below zero Fahrenheit.

"Our results are a major advance for group-IV-based lasers," said Shui-Qing "Fisher" Yu, leader of the research. "They could serve as the promising route for laser integration on silicon and a major step toward significantly improving circuits for electronics devices."

The alloy germanium tin is a promising semiconducting material that can be easily integrated into electronic circuits, such as those found in computer chips and sensors. The material could lead to the development of low-cost, lightweight, compact and low power-consuming electronic components that use light for information transmission and sensing.

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