Ultrathin terahertz filters developed from an accidental spin-off may expand capabilities in satellites, medical scanners and future 6G networks.
The filters are described as microscopic and made of gold. They originate from an accidental spin-off project and are positioned as ultrathin terahertz devices.
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Researchers from India and Singapore report a crystalline membrane made from polyoxometalate clusters whose intrinsic openings are about 1 nanometer wide, enabling unusually sharp molecular separations that could help lower energy use in some industrial purification and water-reuse steps.
Researchers have created a new MRI antenna using metamaterials that produces sharper images of the brain and eye in less time. The device works with existing scanners and was developed by a team at the Max Delbrück Center.
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An international research team has developed a device that can direct, switch and store thermal radiation without ongoing power. The breakthrough separates heat absorption from emission, overcoming a long-standing materials science limit known as reciprocity.
Researchers at Nanyang Technological University in Singapore have generated optical skyrmions using a 200-year-old optics experiment. The approach replaces complex materials with a basic laser and circular disc setup.
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An international team of researchers has directly observed angular momentum transfer in a crystal for the first time, revealing an unexpected reversal in atomic rotation direction. The discovery, achieved with powerful terahertz laser pulses on bismuth selenide, highlights a quantum effect tied to crystal symmetry. Findings were published in Nature Physics.