Spintronic Transistor Tech in a Vortex Beam

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For decades, scientists have explored spintronics that manipulate electron spin to theoretically operate more quickly and burn less energy than conventional electronics. Now researchers find that lasers can generate stable patterns of electron spins in a thin layer of semiconductor material, a discovery that may help lead to advanced spin-based…
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4 Ways to Put Lasers on Silicon

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Photonic integrated circuits, which combine a collection of optoelectronic functions on a single chip, are an increasingly common part of everyday life. They are used in high-speed optical transceivers that link server racks in data centers, including the one used to deliver the IEEE Spectrum website, in lidars to keep…
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Video Friday: Peep Handling

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Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We also post a weekly calendar of upcoming robotics events for the next few months. Please send us your events for inclusion.Robotics Summit & Expo: 10–11 May 2023, BOSTONICRA 2023: 29 May–2…
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Holograms Supercharge Nanoscale 3D Printing

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Using holograms, a nano-scale 3D printer can now rapidly fabricate complex items with details smaller than a wavelength of visible light, a new study finds. This new research can rapidly manufacture nanotechnological arrays of wires, lenses, rotating magnetic gears, and other structures—suggesting applications in electronics, photonics, micro-robotics and more.Currently, the…
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Hybrid Memristor AI Chips Could Scale

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By combining atomically thin devices with conventional microchips, scientists have created brain-mimicking hybrid electronics that can help implement neural network artificial intelligence systems in a far more energy-efficient way than standard electronics, a new study finds.As electronics become tinier and tinier, scientists are investigating atomically thin 2D materials for next-generation…
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Dry EEG Sensors Control Army Robots

paulkokos
Brain-machine interface (BMI) technology, for all its decades of development, still awaits widespread use. Reasons include hardware and software not yet up to the task in non-invasive approaches that use electroencephalogram (EEG) sensors placed on the scalp, and because surgery is required in approaches relying on brain implants.Now, researchers at,…
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