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Search results for metasurface

Nanophysics Feb 23, 2024

Polymer-based tunable optical components allow for metasurfaces that can switched with light

A material coating, whose light refraction properties can be precisely switched between different states, has been developed by an interdisciplinary research team from the Chemistry and Âé¶¹ÒùÔºics departments at the University ...

Optics & Photonics Feb 21, 2024

Accurate quantitative analysis of information loss from digital metasurfaces caused by mutual coupling

Research by Dr. Ruiwen Shao and Prof. Junwei Wu (Institute of Electromagnetic Space, Southeast University, Nanjing, China) teaches us about how digital metasurfaces lose information.

Nanophysics Feb 21, 2024

Angle-dependent holograms made possible by metasurfaces

Recently, a research team from Pohang University of Science and Technology (POSTECH) has employed metasurfaces to fabricate angle-dependent holograms with multiple functions. This technology allows holograms to display multiple ...

Condensed Matter Feb 14, 2024

A new optical metamaterial makes true one-way glass possible

A new approach has allowed researchers at Aalto University to design a kind of metamaterial that has so far been beyond the reach of existing technologies. Unlike natural materials, metamaterials and metasurfaces can be tailored ...

Optics & Photonics Feb 13, 2024

Optical invention mirrors the image processing power of a human eye

On a cold, sunny day, you're driving on a rural road, surrounded by snow-covered fields. In an instant, your eyes process the scene, picking out individual objects to focus on—a stop sign, a barn—while the rest of the ...

Optics & Photonics Feb 8, 2024

Neural network assisted high-spatial-resolution polarimetry with non-interleaved chiral metasurfaces

Polarimetry plays a key role in wide applications from remote sensing and astronomy to biology and microscopy. Traditional polarimetry systems are equipped with a set of polarizers, waveplates, beam-splitters or filters, ...

Condensed Matter Feb 8, 2024

Metamaterial chimera nearly undetectable across visible light, microwave, and infrared spectra

A multi-institutional team of optoelectronic and materials engineers in China has developed a type of metamaterial that is nearly invisible across visible light, microwave and infrared spectra. In their paper, published in ...

Nanophysics Feb 8, 2024

Harnessing light-powered nanoscale electrical currents to propel emerging technologies

Traditional microelectronic architectures, with transistors to control electrical currents along wires, power everything from advanced computers to everyday devices.

Optics & Photonics Feb 7, 2024

Perovskite single-pixel detector for efficient extraction of meta-images in complex environments

Information technology plays a pivotal role in contemporary society, influencing aspects such as social communication, audio-visual entertainment in daily life, and the integration of cloud computing and the Internet of Things ...

Optics & Photonics Feb 6, 2024

Multi-dimensional multiplexing optical secret-sharing framework with cascaded liquid crystal holograms

Information security has become particularly crucial under the background of the big data era. Optical secret-sharing schemes encrypt information and physically divide it into different shares. Information can only be decrypted ...

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