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Search results for nanophotonic

Nanophysics May 13, 2021

New advancement in nanophotonics explains how collections of hot nanoparticles cool down

Everyone has sat outside on a sunny day and been warmed by the sun's rays. This happens through a process known as radiative heat transfer: the sun emits light (electromagnetic radiation), which travels to the Earth and heats ...

Optics & Photonics May 3, 2021

A new way to make AR/VR glasses

"Image" is everything in the $20 billion market for AR/VR glasses. Consumers are looking for glasses that are compact and easy to wear, delivering high-quality imagery with socially acceptable optics that don't look like ...

Materials Science Apr 27, 2021

Material scientists find new angle toward better heat transfer

UCLA materials scientists have developed a class of optical material that controls how heat radiation is directed from an object. Similar to the way overlapping blinds direct the angle of visible light coming through a window, ...

Optics & Photonics Apr 12, 2021

Topological insulator metamaterial with giant circular photogalvanic effect

Topological insulators have notable manifestations of electronic properties. The helicity-dependent photocurrents in such devices are underpinned by spin momentum-locking of surface Dirac electrons that are weak and easily ...

Optics & Photonics Mar 22, 2021

Finding high-Q resonant modes in a dielectric nanocavity

Optical resonators provide the foundation of modern photonics and optics. Thanks to its extreme energy confinement, the high-Q-factor optical resonator optimizes light-matter interaction and photonic device performance by ...

Nanophysics Mar 22, 2021

Plasmonic nanoreactors regulate selective oxidation via energetic electrons and nanoconfined thermal fields

When optimizing catalysis in the lab, product selectivity and conversion efficiency are primary goals for materials scientists. Efficiency and selectivity are often mutually antagonistic, where high selectivity is accompanied ...

Nanophysics Mar 19, 2021

Plasmonic tweezers: For nanoscale optical trapping and beyond

Optical tweezers and associated manipulation tools in the far field have had a major impact on scientific and engineering research by offering precise manipulation of small objects. More recently, near-field manipulation ...

Optics & Photonics Mar 19, 2021

Chromatic light particle effect revealed for the development of photonic quantum networks

It's another step on the road to developing quantum information processing applications: A key experiment succeeded in going beyond the previously defined limits for photon applications. Anahita Khodadad Kashi and Prof. Dr. ...

Nanomaterials Mar 18, 2021

Researchers demonstrate practical metal nanostructures

Researchers at the University of Ottawa have debunked the decade-old myth of metals being useless in photonics—the science and technology of light—with their findings, recently published in Nature Communications, expected ...

Nanophysics Mar 18, 2021

Teamwork makes light shine ever brighter

If you're looking for one technique to maximize photon output from plasmons, stop. It takes two to wrangle.

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