Search results for metamaterial

Optics & Photonics May 7, 2020

Ultra-long-working-distance spectroscopy with 3-D-printed aspherical microlenses

Additive manufacturing is a technique in which a three-dimensional object is produced by successively adding new layers of building material to those that have already been deposited. Recently, commercially available 3-D ...

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 Physics 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

Scientists use phononic crystals to make dynamic acoustic tweezers

Acoustic tweezers are a powerful tool for contactless manipulation of particles and cells using acoustic radiation forces (ARF) generated by the transfer of acoustic wave momentum. They play an important role in display technology, ...

Optics & Photonics Apr 30, 2020

Machine learning enhances light–Matter interactions in dielectric nanostructures

A paper published in Advanced Photonics "Enhanced light–matter interactions in dielectric nanostructures via machine-learning approach," suggests that machine-learning techniques can be used to enhance metasurfaces, optimizing ...

Nanophysics Apr 30, 2020

Intricate magnetic configuration of 3-D nanoscale gyroid networks revealed

A multinational team of researchers from Tohoku University and institutions in the UK, Germany and Switzerland has revealed the magnetic states of nanoscale gyroids, 3-D chiral network-like nanostructures. The findings add ...

Optics & Photonics Apr 27, 2020

New metasurface laser produces world's first super-chiral light

Researchers have demonstrated the world's first metasurface laser that produces "super-chiral light": light with ultra-high angular momentum. The light from this laser can be used as a type of "optical spanner" to or for ...

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 ...

Nanomaterials Apr 22, 2020

Scientists devise method for gentle laser processing of perovskites at nanoscale

Scientists of Far Eastern Federal University (FEFU) in partnership with colleagues from ITMO University, and universities in Germany, Japan, and Australia, have developed a method for precise, fast and high-quality laser ...

Optics & Photonics Apr 15, 2020

A quantum metasurface that can simultaneously control multiple properties of light

Metasurfaces are artificial materials designed at the nanoscale, which can control the scattering of light with exceptionally high precision. Over the past decade or so, these materials have been used to create a variety ...

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