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Optics & Photonics Jul 05, 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 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 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 09, 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 09, 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. ...

Optics & Photonics May 07, 2021

Hologram experts can now create real-life images that move in the air

They may be tiny weapons, but Brigham Young University's holography research group has figured out how to create lightsabers—green for Yoda and red for Darth Vader, naturally—with actual luminous beams rising from them.

Optics & Photonics Apr 30, 2021

Holographic histopathology enables fast, precise diagnostics

Histology is the study of biological tissues at a microscopic level. Also called microscopic anatomy, histology is widely used to provide diagnosis of cancer and other diseases. For example, tissue samples obtained during ...

Optics & Photonics Jul 22, 2020

Instantaneous color holography system for sensing fluorescence and white light achieved

The National Institute of Information and Communications Technology (NICT), the Japan Science and Technology Agency (JST), Toin University of Yokohama, and Chiba University have succeeded in developing a color-multiplexed ...

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