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22 Apr 2021 Silicon nitride-based PICs offer “record low optical losses” as well as smaller footprints. Integrated silicon nitride photonic chips with meter-long spiral waveguides. Integrated photonic chips are usually made from silicon that is abundant and has good optical properties. But silicon cannot perform every required function in integrated photonics, so new material platforms have emerged. One of these is silicon nitride (Si 3N 4), whose exceptionally low optical loss – orders of magnitude lower than that of silicon – has made it the material of choice for appl...

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Swedish group uses graphene to progress copper 3D printing 10 Feb 2021 Uppsala University and Graphmatech report breakthrough in printability of copper for laser additive manufacturing. The partners say they have achieved this by “significantly lowering the reflectivity of copper powder to achieve more dense printed parts.” In recent years, additive manufacturing of metals has seen rapid uptake across a range of industries due to its ability to produce customized and complex designs on demand, as well as offering more sustainable manufacturing with reduced waste and lower material...

Job: Scientific Writer - Thorlabs, Inc. Newton, NJ, United States