The lab-based prototype lidar system that the research team built captures megapixel-resolution depth maps using a commercial digital camera. (Image credit: Andrew Brodhead)

New modulator adds time-of-flight to any sensor

Stanford University researchers say its megahertz modulator could enable megapixel-resolution lidar at a low cost

Four imaging examples, two indoor (left) and two outdoor (right). These examples primarily explore the polarised nature of specular (Fresnel reflection), in which unpolarised light is partially polarised perpendicular to the plane of incidence upon reflection. Credit: Capasso Lab/Harvard SEAS

Metasurface turns any camera into polarisation imager

Harvard researchers have developed a metasurface attachment that can turn any imaging system into a polarisation camera


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