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Search results for metasurface

Optics & Photonics Nov 6, 2019

Intelligent metasurface imager and recognizer

The Internet of Things (IoT) and cyber physical systems have opened up possibilities for smart cities and smart homes, and are changing the way for people to live. In this smart era, it is increasingly demanded to remotely ...

Optics & Photonics Nov 4, 2019

Commemorating 30 years of optical vortices: A comprehensive review

Commemorating the 30th anniversary of the prediction of optical vortices, researchers in China—Xing Fu at Tsinghua University, Xiaocong Yuan at Shenzhen University and co-authors—reviewed the 30-year development of the ...

Optics & Photonics Oct 30, 2019

Dielectric metasurfaces for next-generation holograms

Metasurfaces are optically thin metamaterials that can control the wavefront of light completely, although they are primarily used to control the phase of light. In a new report, Adam C. Overvig and colleagues in the departments ...

Optics & Photonics Oct 28, 2019

Compact depth sensor inspired by eyes of jumping spiders

For all our technological advances, nothing beats evolution when it comes to research and development. Take jumping spiders. These small arachnids have impressive depth perception despite their tiny brains, allowing them ...

Optics & Photonics Oct 14, 2019

3-D integrated metasurfaces stacking up for impressive holography

Âé¶¹ÒùÔºicists 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 Oct 4, 2019

New metasurface design can control optical fields in three dimensions

A team led by scientists at the University of Washington has designed and tested a 3-D-printed metamaterial that can manipulate light with nanoscale precision. As they report in a paper published Oct. 4 in the journal Science ...

Optics & Photonics Sep 26, 2019

Research team develops new way to make integrated photonics

The signals from a lighthouse to ships at sea is an early example of optical communication, the use of light to transmit information. Today, researchers in the field of integrated photonics are using optical communications ...

Optics & Photonics Sep 25, 2019

Machine learning finds new metamaterial designs for energy harvesting

Electrical engineers at Duke University have harnessed the power of machine learning to design dielectric (non-metal) metamaterials that absorb and emit specific frequencies of terahertz radiation. The design technique changed ...

Optics & Photonics Sep 12, 2019

Metasurface holograms: Fast, compact polarization measurements for spectroscopy and sensing

For the first time, researchers have used ultra-thin layers of 2-D structures known as metasurfaces to create holograms that can measure the polarization of light. The new metasurface holograms could be used to create very ...

Nanophysics Aug 22, 2019

Breakthroughs seen in artificial eye and muscle technology

Inspired by the human eye, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an adaptive metalens that is essentially a flat, electronically controlled artificial ...

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