Search results for metasurface

Optics & Photonics Feb 22, 2021

New 'metalens' shifts focus without tilting or moving

Polished glass has been at the center of imaging systems for centuries. Their precise curvature enables lenses to focus light and produce sharp images, whether the object in view is a single cell, the page of a book, or a ...

Optics & Photonics Feb 19, 2021

Spin Hall effect of light achieved with near 100% efficiency

A POSTECH-KAIST joint research team has successfully developed a technique to reach near-unity efficiency of SHEL by using an artificially-designed metasurface.

Bio & Medicine Feb 17, 2021

Novel sandwich technology improves sensitivity of rapid tests

EPFL scientists have developed a method for boosting the sensitivity of rapid-detection tests like those used for the new coronavirus. The results of their feasibility study have just been published in Nano Letters.

Optics & Photonics Feb 11, 2021

Capturing free-space optical light for high-speed Wi-Fi

Visible and infrared light can carry more data than radio waves, but has always been confined to a hard-wired, fiber-optic cable. Working with Facebook's Connectivity Lab, a Duke research team has now made a major advance ...

Bio & Medicine Feb 8, 2021

Wearable plasmonic-metasurface sensor for universal molecular fingerprint detection on biointerfaces

Wearable sensing technology is an essential link in personalized medicine, where researchers must track multiple analytes inside the body simultaneously, to obtain a complete picture of human health. In a new report on Science ...

Optics & Photonics Feb 2, 2021

Say goodbye to the dots and dashes to enhance optical storage media

Purdue University innovators have created technology aimed at replacing Morse code with colored "digital characters" to modernize optical storage. They are confident the advancement will help with the explosion of remote ...

Quantum Physics Jan 21, 2021

Bringing atoms to a standstill: Researchers miniaturize laser cooling

It's cool to be small. Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the ...

Nanophysics Jan 21, 2021

A new nanomaterial for the war against counterfeits

Despite the anticounterfeiting devices attached to luxury handbags, marketable securities, and identification cards, counterfeit goods are on the rise. There is a demand for the next-generation anticounterfeiting technologies—that ...

Optics & Photonics Jan 4, 2021

Convex to concave: More metasurface moiré results in wide-range lens

The odd, wavy pattern that results from viewing certain phone or computer screens through polarized glasses has led researchers to take a step toward thinner, lighter-weight lenses. Called moiré, the pattern is made by laying ...

Quantum Physics Dec 29, 2020

Metasurface enabled quantum edge detection

Metasurfaces provide unique platforms to realize exotic phenomena including negative refraction, achromatic focusing, and electromagnetic cloaking due to the engineered dielectric or metallic architectures. The intersection ...

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