Search results for metasurface

General Physics Mar 12, 2019

An electronically tunable metasurface that rotates polarization

Researchers at the University of Michigan and City University of New York have recently proposed and experimentally validated a transparent, electronically tunable metasurface. This metasurface, presented in a paper published ...

Optics & Photonics Mar 18, 2019

Mass manufacturing of metasurfaces

The mass production of flat optical devices with sub-wavelength structures could soon be a reality, thanks to a metasurface fabrication technique developed by researchers at A*STAR.

Optics & Photonics May 22, 2019

'Metasurfaces' that manipulate light at tiny scales could find uses in consumer technology

Most of us know optical lenses as curved, transparent pieces of plastic or glass, designed to focus light for microscopes, spectacles, cameras, and more. For the most part, a lens' curved shape has not changed much since ...

Optics & Photonics Oct 14, 2019

3-D integrated metasurfaces stacking up for impressive holography

Physicists and materials scientists have developed a compact optical device containing vertically stacked metasurfaces that can generate microscopic text and full-color holograms for encrypted data storage and color displays. ...

Optics & Photonics Mar 02, 2017

Electrically tunable metasurfaces pave the way toward dynamic holograms

(Phys.org)—Dynamic holograms allow three-dimensional images to change over time like a movie, but so far these holograms are still being developed. The development of dynamic holograms may now get a boost from recent research ...

Optics & Photonics Oct 24, 2014

Flatland, we hardly knew ye: Unique 1-D metasurface acts as polarized beam splitter, allows novel form of holography

(Phys.org) —Traditional three-dimensional (3-D) plasmonic metamaterials with metallic structures – artificial materials that exploit coherent delocalized electron oscillations known as surface plasmons produced from the ...

Nanophysics Jan 12, 2015

Metasurface solves calculus problems as an analog computer

Scientists have demonstrated that a 2-D man-made material called a metasurface can perform spatial differentiation and integration, the two main types of calculus problems, when illuminated by a laser beam. Essentially, the ...

Optics & Photonics Apr 03, 2018

A new metasurface model shows potential to control acoustic wave reflection

An international team of researchers showed how a nonlinear elastic metasurface could convert a wave's fundamental frequency to its second harmonic. Structural factors in metasurfaces, like the spatial arrangement of its ...

Engineering Dec 07, 2018

Tailoring nonlinearity with time domain metasurface for wireless communication

Electromagnetic and optical nonlinear effects provide an important platform in a broad spectrum of technologies, including high harmonic generation, sum and difference frequency conversions, self-focusing, optical solitons, ...

Optics & Photonics Dec 21, 2018

New metasurfaces look bright in one direction, while dark in the opposite direction

Researchers at Aalto University have developed metasurfaces with extreme angle-asymmetric response. The surface reflections depend on the angle at which light hits it.

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