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Astronomy Aug 10, 2021

Magnetic patterns hidden in meteorites reveal early solar system dynamics

Researchers have developed a novel technique to investigate the dynamics of the early solar system by analyzing magnetites in meteorites utilizing the wave nature of electrons.

Analytical Chemistry Aug 2, 2021

Deep learning and holography create a better point-of-care sensor

Agglutination assays are widely used immunological sensors based on antigen-antibody interactions that result in clumping of antibody-coated microscopic particles. Once the sample—for example, a patient's serum—is introduced, ...

Optics & Photonics Jul 28, 2021

Machine-learning method to find optimal solutions in extremely large design spaces

Electrical engineers at Duke University have devised a new method for solving difficult design problems with many potential solutions in a large design space using machine learning. Dubbed the "neural-adjoint method," the ...

Optics & Photonics Jul 13, 2021

Optical singularities could be used for a wide range of applications from super resolution imaging to optical trapping

When we think about singularities, we tend to think of massive black holes in faraway galaxies or a distant future with runaway AI, but singularities are all around us. Singularities are simply a place where certain parameters ...

Optics & Photonics Jul 5, 2021

Piezoelectric microelectromechanical system-based optical metasurfaces

Optical metasurfaces can unprecedently regulate versatile wavefronts at the subwavelength scale. Most well-established optical metasurfaces are, however, static and feature well-defined optical responses that are determined ...

Optics & Photonics Jun 29, 2021

New type of metasurface allows unprecedented laser control

The ability to precisely control the various properties of laser light is critical to much of the technology that we use today, from commercial virtual reality (VR) headsets to microscopic imaging for biomedical research. ...

Optics & Photonics Jun 9, 2021

X-ray flash imaging of laser-induced bubbles and shockwaves in water

Researchers have created tiny bubbles in high-pressure water via intense focused lasers. Under these conditions, the bubbles expand at supersonic speed and push a shockwave consisting of a spherical shell of highly compressed ...

Polymers Jun 9, 2021

Single-particle studies point the way toward next-generation light displays

Holographic displays help add a three-dimensional—and thus more life-like—feel to what would otherwise appear as a two-dimensional image. Now, researchers in Japan have tested how this may work on a supramolecular level; ...

Nanophysics May 12, 2021

Shaken, not stirred: Ultrafast skyrmion reshuffling

Smaller, faster, more energy-efficient: future requirements to computing and data storage are hard to fulfill and alternative concepts are continuously explored. Small magnetic textures, so-called skyrmions, may become an ...

Bio & Medicine May 11, 2021

Light-controlled nanoparticles will play key role in biosensor development

Scientists from ITMO University have developed a production method for biointegrable nanoparticles that can be controlled via heat. With light irradiation, these particles change not only their shape, but their color, too. ...

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