#metasurface

[abdulaziz2026]

طور باحثون كاميرا بحجم حبة الملح تستخدم تقنية Metasurface

طور باحثون كاميرا بحجم حبة الملح تستخدم تقنية Metasurface

طور باحثون من جامعة برينستون وجامعة واشنطن كاميرا فائقة الصغر أكبر بقليل من حبة الملح الخشن، وذلك بفضل تقنية تسمى طور باحثون كاميرا بحجم حبة الملح تستخدم تقنية Metasurface . هذه الكاميرا مرصعة بـ 1.6 مليون عمود أسطواني. وعلى الرغم من حجمها، لا تزال هذه الكاميرا قادرة على إنتاج صور كاملة الألوان تتطابق مع عدسات الكاميرا التقليدية التي يزيد حجمها عنها بنصف مليون مرة.

Researchers Develop a Salt Grain-Sized Camera That Uses Metasurface Technology

Princeton University and the University of Washington researchers have developed an ultracompact camera that is just slightly larger than a coarse grain of salt, thanks to a technology called a metasurface. The latter is essentially studded with 1.6 million cylindrical posts and can be manufactured just like a computer chip. Despite its size, this camera is still capable of producing full-color images that match conventional compound camera lenses 500,000 times larger in volume.

[eldergodchucky]

A quantum metasurface breakthrough could finally close the terahertz gap

A new research report is adding another piece to a larger scientific puzzle, and the important part is not the drama of the finding but the practical work it could make possible. For readers, the useful question is what the research changes: whether it gives scientists a cleaner measurement, a better tool, or a result strong enough for other teams to test. Continue reading A quantum metasurface…

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[wayti-blog]

Programmable terahertz vortices enable dual electric and magnetic skyrmion modes

Researchers have created an optical device that can generate both electric and magnetic vortex-ring-like light patterns. These structured li

"Researchers have created an optical device that can generate both electric and magnetic vortex-ring-like light patterns. These structured light vortices, known as skyrmions, are highly stable and resistant to disturbances, making them promising for reliably encoding information in wireless applications.

"Our device not only generates more than one vortex pattern in free-space-propagating terahertz pulses, but can also be used to switch, on demand, between two modes using the same integrated platform," said corresponding author Xueqian Zhang from Tianjin University. "Such controllability is essential for real applications, where reliable selection and reproduction of a desired state are crucial for practical information encoding."

The work appears in Optica.

Zhang and colleagues describe how they used a nonlinear metasurface to achieve the first experimental demonstration of skyrmions that can be switched between electric and magnetic modes in toroidal terahertz light pulses. Metasurfaces are ultra-thin materials with nano-scale patterns that enable them to bend, focus or filter light in ways that conventional devices cannot."

"Toroidal vortices of light—which have a ring-shaped loop where the electromagnetic field curls around itself, forming a stable, donut-like structure—are attractive because they can add extra ways to encode information. However, most existing devices can make only one kind of toroidal vortex pattern, often in a limited way, and don't have a built-in capability to switch between different modes.

To make an integrated device that can be used to switch between electric and magnetic toroidal vortex light patterns in free-space terahertz pulses, the researchers used a specially designed nonlinear metasurface made from carefully patterned metallic nanostructures."

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[bytetrending]

Waveguide Physics Boosts Metasurface Light Control

Revolutionizing Light with Metasurfaces Metasurfaces, ultrathin engineered materials capable of manipulating light in unprecedented ways, are rapidly transforming optics and promising breakthroughs across various fields. Unlike traditional lenses that rely on gradual refractive index changes, metasurfaces achieve their effects through the precise arrangement of nanoscale structures – a technology…

Waveguide Physics Boosts Metasurface Light Control

[dr-afsaeed]

Metasurface quantum graphs for generalized Hong-Ou-Mandel interference - New Study

Science, Volume 389, Issue 6758, Page 416-422, July 2025. Summary Without knowing the specific article content in Science, Volume 389, Issue 6758, pages 416-422 (July 2025), I can only offer a generalized summary based on what a typical scientific article might contain. General Summary: A research article published in Science (July 2025) investigates [mention a potential scientific field/topic…

[francois-chung]

‘Guardian of drone’: Chinese scientists create new invisibility cloak

Researchers in China create a cloak that maintains invisibility in dynamic conditions by neutralizing outside inputs, the "guardian of drone

« The age of intelligent cloaks and intelligent metasurfaces is just dawning. Endeavors in achieving this goal have been embodied throughout streamlining photonics design, capturing latent physics, and automating metadevice. »

[francois-chung]

Researchers shrink camera to the size of a salt grain

Researchers at Princeton University and the University of Washington have developed an ultracompact camera the size of a coarse grain of sal

« We could turn individual surfaces into cameras that have ultra-high resolution, so you wouldn’t need three cameras on the back of your phone anymore, but the whole back of your phone would become one giant camera. We can think of completely different ways to build devices in the future. »