Search results for metasurface

Condensed Matter Jul 25, 2022

Photonic spin Hall effect: Fundamentals and emergent applications

When a beam is reflected (or refracted) at optical interface or propagating through an inhomogeneous medium, photons with opposite spin angular momenta will separate with each other, resulting in a spin-dependent splitting ...

Optics & Photonics Jul 25, 2022

Present and future of nonlinear optical metasurfaces

One of the main objectives of optics is the control of light propagation and confinement. Progress in optics historically started with the development of bulky lenses and mirrors, then prisms and gratings, and so on. The ...

Condensed Matter Jul 13, 2022

Atomically-smooth gold crystals help to compress light for nanophotonic applications

Korea Advanced Institute of Science and Technology (KAIST) researchers and their collaborators at home and abroad have successfully demonstrated a new platform for guiding the compressed light waves in very thin van der Waals ...

Nanomaterials Jul 6, 2022

Upside-down design expands wide-spectrum super-camera abilities

By turning a traditional lab-based fabrication process upside down, researchers at Duke University have greatly expanded the abilities of light-manipulating metasurfaces while also making them much more robust against the ...

Optics & Photonics Jun 30, 2022

Review discusses using nonlinear optics with structured light

Light can be tailored, much like cloth, weaving and stitching a pattern into the very fabric of light itself. This so-called structured light allows us to access, harness and exploit all light's degrees of freedom, for seeing ...

Optics & Photonics Jun 21, 2022

Broadband perfect absorber scheme for light absorption

Researchers from the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences have recently proposed a design concept for a tunable broadband perfect absorber based on non-split coupling of ...

Optics & Photonics Jun 20, 2022

Nanoparticles that control flow of light like road signs direct traffic

Physicists at The Australian National University (ANU) have developed tiny translucent slides capable of producing two very different images by manipulating the direction in which light travels through them.

Biotechnology Jun 14, 2022

Moth wing–inspired sound absorbing wallpaper in sight after breakthrough

Experts at the University of Bristol have discovered that the scales on moth wings act as excellent sound absorbers even when placed on an artificial surface.

Optics & Photonics Jun 14, 2022

All-dielectric grating structure color filter for sensing and display imaging

Compared with traditional color dyes, structural color has the advantages of high resolution and good stability, which can achieve full-tone modulation in the visible light range. All-dielectric metasurface structures are ...

Optics & Photonics Jun 6, 2022

A novel all-optical switching method makes optical computing and communication systems more power-efficient

A group of photonics researchers at Tampere University have introduced a novel method to control a light beam with another beam through a unique plasmonic metasurface in a linear medium at ultra-low power. This simple linear ...

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