Search results for metasurface

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 ...

Optics & Photonics Feb 09, 2018

Metasurfaces enable improved optical lens performance

Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory that solves the problem ...

Optics & Photonics May 01, 2015

Researchers enhance nonlinear effects of optical metasurfaces

Optical metasurfaces are thin-layer subwavelength-patterned structures that interact strongly with light. Offering a wealth of useful functionalities, they are a logical extension of the field of metamaterials towards their ...

Optics & Photonics Mar 14, 2013

'Metasurfaces' to usher in new optical technologies

(Phys.org) —New optical technologies using "metasurfaces" capable of the ultra-efficient control of light are nearing commercialization, with potential applications including advanced solar cells, computers, telecommunications, ...

General Physics Jun 08, 2011

NIST tunes 'metasurface' with fluid in new concept for sensing and chemistry

(PhysOrg.com) -- Like an opera singer hitting a note that shatters a glass, a signal at a particular resonant frequency can concentrate energy in a material and change its properties. And as with 18th century "musical glasses," ...

Nanophysics Dec 21, 2016

Scientists develop new metasurfaces for deep UV-imaging

Russian researchers have developed a new material that converts infrared light to ultrashort pulses of ultraviolet. For this purpose, the scientists exposed silicon film to a laser so that its relief adjusted under the light ...

Optics & Photonics Mar 01, 2018

Engineered metasurfaces replace adhesive tape in specialized microscope

The latest advance in a new type of optics aimed at improving microscopy started with a game of tennis three years ago.

Nanophysics Jul 29, 2016

High-efficiency color holograms created using a metasurface made of nanoblocks

(Phys.org)—By carefully arranging many nanoblocks to form pixels on a metasurface, researchers have demonstrated that they can manipulate incoming visible light in just the right way to create a color "meta-hologram." The ...

General Physics Dec 18, 2015

Researchers develop 'metasurface' laser for terahertz range

Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have identified a new way to make a semiconductor laser that operates at terahertz frequencies. The breakthrough could lead to development of ...

Optics & Photonics Mar 09, 2017

Sandia creates 3-D metasurfaces with optical possibilities

Metamaterials don't exist in nature, but their ability to make ultra-thin lenses and ultra-efficient cell phone antennas, bend light to keep satellites cooler and let photovoltaics absorb more energy mean they offer a world ...

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