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Search results for metamaterials

Nanophysics Mar 15, 2023

Controlling the degree of twist in nanostructured particles for the first time

Micron-sized "bow ties," self-assembled from nanoparticles, form a variety of different curling shapes that can be precisely controlled, a research team led by the University of Michigan has shown.

Condensed Matter Mar 14, 2023

Realization of photonic p-orbital higher-order topological insulators

In condensed matter systems, an essential characteristic of electrons besides charge and spin is the orbital degree of freedom (ODoF). It plays a crucial role in understanding unconventional properties in solid-state materials ...

Optics & Photonics Mar 13, 2023

Scientists demonstrate time reflection of electromagnetic waves

When we look in a mirror, we are used to seeing our faces looking back at us. The reflected images are produced by electromagnetic light waves bouncing off of the mirrored surface, creating the common phenomenon called spatial ...

Polymers Mar 10, 2023

Fluid mixing enables scalable manufacturing of soft polymer structures

Researchers have developed and demonstrated an efficient and scalable technique that allows them to manufacture soft polymer materials in a dozen different structures, or "morphologies," from ribbons and nanoscale sheets ...

Condensed Matter Feb 16, 2023

Perovskites, a 'dirt cheap' alternative to silicon, just got a lot more efficient

Silicon, the standard semiconducting material used in a host of applications—computer central processing units (CPUs), semiconductor chips, detectors, and solar cells—is an abundant, naturally occurring material. However, ...

Nanophysics Feb 14, 2023

Gate-tunable nanoscale negative refraction of polaritons demonstrated in van der Waals heterostructure

A new study led by Dai Qing's team from the National Center for Nanoscience and Technology (NCNST) of the Chinese Academy of Sciences (CAS) and Javier Abajo from the Institute of Photonic Sciences (ICFO) in Spain has shown ...

Condensed Matter Dec 22, 2022

Researchers show a new way to induce useful defects using invisible material properties

Much of modern electronic and computing technology is based on one idea: Add chemical impurities, or defects, to semiconductors to change their ability to conduct electricity. These altered materials are then combined in ...

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 ...

Optics & Photonics Dec 22, 2022

Meta-optics: The disruptive technology you didn't see coming

Robots and autonomous cars will have eyes that see much more than the human eye is capable of, a review of the growing field of meta-optics has found.

Condensed Matter Dec 19, 2022

Researchers realize remote tuning of lifetime of coupled Dirac plasmons

Recently, the team led by Prof. Zeng Changgan from the University of Sciences and Technology of China (USTC) of the Chinese Academy of Sciences, collaborating with Li Xiaoguang's team from Shenzhen University, has enabled ...

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