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Search results for plasmonic

Nanophysics May 15, 2020

Watching the in situ hydrogen diffusion dynamics in magnesium on the nanoscale

Switchable materials that have extreme material contrast and short switching times with negligible degradation can contribute to active plasmonic and nanophotonic systems. In order to understand their supreme properties, ...

Optics & Photonics May 15, 2020

Light, fantastic: The path ahead for faster, smaller computer processors

Light is emerging as the leading vehicle for information processing in computers and telecommunications as our need for energy efficiency and bandwidth increases.

Plasma Âé¶¹ÒùÔºics May 14, 2020

Topological waves may help in understanding plasma systems

Nearly 50 years ago, Brown University physicist Michael Kosterlitz and his colleagues used the mathematics of topology—the study of how objects can be deformed by stretching or twisting but not tearing or breaking—to ...

Nanomaterials May 14, 2020

Making quantum 'waves' in ultrathin materials

Wavelike, collective oscillations of electrons known as "plasmons" are very important for determining the optical and electronic properties of metals.

Bio & Medicine May 12, 2020

Silver nanocubes make point-of-care diagnostics easier to read

Engineers at Duke University have shown that nanosized silver cubes can make diagnostic tests that rely on fluorescence easier to read by making them more than 150 times brighter. Combined with an emerging point-of-care diagnostic ...

Nanomaterials May 7, 2020

High color purity 3-D printing

Selective powder sintering for 3-D printing has recently become an increasingly affordable solution for manufacturing made-to-order elements of almost any shape or geometry. This technique involves heating a bed of powder ...

Condensed Matter May 5, 2020

A new law for metamaterials

Metamaterials, which are engineered to have properties not found in nature, have long been developed and studied because of their unique features and exciting applications. However, the physics behind their thermal emission ...

General Âé¶¹ÒùÔºics May 5, 2020

Broadband enhancement relies on precise tilt

Quantum photonics involves a new type of technology that relies on photons, the elementary particle of light. These photons can potentially carry quantum bits of information over large distances. If the photon source could ...

Optics & Photonics May 4, 2020

Exciton resonance tuning of an atomically thin lens

Since the development of diffractive optical elements in the 1970s, researchers have increasingly uncovered sophisticated fundamental principles of optics to replace the existing bulky optical elements with thin and lightweight ...

Nanophysics Apr 27, 2020

Photonic metasurfaces provide a new playground for twistronics

Quantum optics, spintronics and diffraction-free imaging with low loss are among the technologies that may benefit from recently predicted effects in twisted bilayer photonic structures. The work takes inspiration from a ...

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