30 surface-emitting microlasers are coupled to form a topological laser. Along a topological interface (blue), they behave as a single laser and emit coherent laser light together (red). Artistic representation. (Image: Pixelwg, Christian Kroneck)
30 surface-emitting microlasers are coupled to form a topological laser. Along a topological interface ( blue ), they behave as a single laser and emit coherent laser light together ( red ). Artistic representation. (Image: Pixelwg, Christian Kroneck) 12/14/2021 The development of a topological laser network by a team of the Cluster of Excellence ct.qmat is among the top ten nominations for the "Breakthrough of the Year Award". On 24 September 2021, a paper appeared in the scientific journal Science that caused a sensation among experts. Israeli and German researchers from the Würzburg-Dresden Cluster of Excellence ct.qmat presented a new development: a highly effective network of surface-emitting lasers only the size of a grain of sand that act as a single laser. This set-up can be used to boost the power of microlasers, which are already firmly anchored in mobile phones, fibre-optic networks and other everyday technologies ( ct.qmat press release ).
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