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[Nanotechnology] – Spiral dislocation gives 3D topological photonics a robust edge 28 septembre 2022

Researchers from the University of Rostock and Technion Haifa have created the first three-dimensional topological insulator for light. A judiciously placed screw dislocation allows optical signals to wind around the surface of a synthetic lattice while keeping it protected from scattering.
Their discovery has recently been published in the journal Nature (« Photonic topological insulator induced by a dislocation in three dimensions »).

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[Innovation] – Codex International now offers the very last SPS sintering technology. 21 mars 2023

The main characteristic of Spark Plasma Sintering (SPS) is that the pulsed or unpulsed DC or AC current directly passes through the graphite die as well as the powder compact, in case of conductive samples.

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