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Search results for wave engineering

Soft Matter Dec 22, 2022

Superscattering of water waves: Breaking the single channel scattering limit

The National Science Review recently published a study by Huaping Wang's group at Zhejiang University. Inspired by electromagnetic metamaterials, the research team designed and fabricated a water wave superscattering device ...

Planetary Sciences Dec 6, 2022

How the current Southwestern North American megadrought is affecting Earth's upper atmosphere

New research, based on two decades' worth of data, shows that in the ten years after its onset in 2000, the Southwestern North American (SWNA) megadrought caused a 30% change in gravity wave activity in Earth's upper atmosphere.

Plasma Âé¶¹ÒùÔºics Dec 6, 2022

Plasma instability may be a solution for magnetic nozzle plasma thrusters

A research group has demonstrated that spontaneously excited plasma waves may be the solution to a long-associated problem with magnetic nozzle plasma thrusters, turning conventional thinking on its head.

Bio & Medicine Dec 2, 2022

'Virtual pillars' separate and sort blood-based nanoparticles

Engineers at Duke University have developed a device that uses sound waves to separate and sort the tiniest particles found in blood in a matter of minutes. The technology is based on a concept called "virtual pillars" and ...

Optics & Photonics Nov 30, 2022

Photonics chip allows light amplification

The ability to achieve quantum-limited amplification of optical signals contained in optical fibers is arguably among the most important technological advances that are underlying our modern information society. In optical ...

Ecology Nov 29, 2022

Heat waves could reduce survival of coral larvae and connectivity of coral populations in Mediterranean Sea

Global climate change and, in particular, the warming of the oceans has caused the frequency and severity of marine heat waves to increase every year, with serious consequences for the stability and resilience of coral populations.

Optics & Photonics Nov 16, 2022

Researchers unlock light-matter interactions on sub-nanometer scales, leading to 'picophotonics'

Researchers at Purdue University have discovered new waves with picometer-scale spatial variations of electromagnetic fields that can propagate in semiconductors like silicon. The research team, led by Dr. Zubin Jacob, Elmore ...

Nanophysics Nov 7, 2022

Engineers develop a low-cost terahertz camera

Terahertz radiation, whose wavelengths lie between those of microwaves and visible light, can penetrate many nonmetallic materials and detect signatures of certain molecules. These handy qualities could lend themselves to ...

Condensed Matter Oct 21, 2022

Confining classical and quantum waves with crystals

In the journal Âé¶¹ÒùÔºical Review Letters, a team of researchers from the University of Twente describes how any kind of wave, whether quantum or classical, is confined in any kind of crystal. The results will notably boost ...

General Âé¶¹ÒùÔºics Oct 19, 2022

Like an invisible pair of tweezers, sound waves can levitate tiny objects in the air

While DIY acoustic levitation kits can be found online, the technique has important applications for research and industry including manipulating sensitive material such as biological cells.

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