TechnologyCaltech Chip Redirects Light in 74 FemtosecondsCaltech engineers built a nanoscale silicon surface that redirects one beam of light using another in just 74 femtoseconds — about the time light crosses a human hair.
TechnologyMetamaterial MRI Upgrade Sharpens Brain and Eye ScansScientists redesigned a key MRI antenna component using metamaterials, delivering sharper images of the brain and eye on existing scanners — no expensive hardware replacement needed.
