Airborne single-photon lidar system achieves high-resolution 3D imaging

Phys.org— Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. This advance could make single-photon lidar practical for air and space applications such as environmental monitoring, 3D terrain mapping and object identification.

Phys.org—Researchers unveil single-shot and complete polarization imaging system using metasurfaces. Think of all the information we get based on how an object interacts with wavelengths of light—aka color. Color can tell us if food is safe to eat or if a piece of metal is hot. Color is an important diagnostic tool in medicine, helping practitioners diagnose diseased tissue, inflammation, or problems in blood flow.

Phys.org—Scientists demonstrate high-resolution lidar sees birth zone of cloud droplets, a first-ever remote observation. A team led by atmospheric scientists at the U.S. Department of Energy's Brookhaven National Laboratory has demonstrated the first-ever remote observations of the fine-scale structure at the base of clouds. The results, just published in npj Climate and Atmospheric Science, show that the air-cloud interface is not a perfect boundary but rather is a transition zone where aerosol particles suspended in Earth's atmosphere give rise to the droplets that ultimately form clouds.

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