Nano Lasers Grown Onto Silicon Chips
The researchers have shown that infrared lasers, which are ten times thinner than a human hair, can be embedded in the design of a silicon chip. These ultrafast photon sources can find applications in a variety of fields, from optical computing to remote sensing..
Silicon is the most common material in the semiconductor industry, but until now it has been difficult to integrate compact light sources into it. Scientists at Cardiff University have solved the problem by developing nanolasers based on an InGaAs / InP photonic crystal array with a core on a silicon substrate on an insulator.
Lasers operate at room temperature and generate infrared radiation in the 1290 nm range, which corresponds to the length of telecommunication waves. Optimized design achieves 200 μJ / cm2 optical power without heating or degradation.
Research team collaborates with IQE Plc to apply new technology to 3D nanolasers, innovative photodetectors and photovoltaics.
We also previously reported on the creation of the world’s first 2 THz optical transistor operating at room temperature..
text: Ilya Bauer, photo: squarespace