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Nanoparticles, Light-Matter Interactions Spur Datacom Developments | Research & Technology | Jun 2022

Physicists at Australian National University (ANU) have developed translucent metasurfaces, described as slides, that produce two distinct images by m ....

Lei Wang , New South Wales , Australian Capital Territory , Sergey Kruk , Southeast University , Physicists At Australian National University , Australian National University , Sydney Opera , Ella Maru , Nature Photonics , Research Amp Technology , Fiber Optics Amp Communications , Australia National Unive ,

This New Ultra-Compact Camera Is The Size of a Grain of Salt And Takes Stunning Photos

Scientific ingenuity means cameras keep on getting smaller and smaller, and the latest to appear is not only incredibly tiny – the same size as a grain of salt – it s also able to produce images of much better quality than a lot of other ultra- ....

New Jersey , United States , Princeton University , Felix Heide , Ethan Tseng , Nature Communications , Joseph Mait , Mp Quot ,

Researchers develop a camera the size of a salt grain

The camera leverages imaging hardware and computational processing to produce stunning results compared to previous state-of-the-art equipment. The primary innovation is a technology called a "metasurface." ....

Felix Heide , Ethan Tseng , Nature Communications , University Of Washington , Camera Technology , University Of Washington ,

What are metamaterials and metasurfaces? Definition, properties and applications

Metamaterials are artificially crafted composite materials that derive their properties from internal microstructure, rather than chemical composition found in natural materials. By engineering the arrangement of atoms into a desired architecture or geometry, metamaterials can be endowed with properties and functionalities unattainable in natural materials ....

Roger Walser , James Maxwell , Purdue University , Birck Nanotechnology Center , Rho Research Lab , Physical Review Letters , Refraction Makes , Nano Letters , Aspect Subdiffraction Limit Photolithography , Nature Materials , Artificial Material , Invisibility Cloak , ஜேம்ஸ் மேக்ஸ்வெல் , பர்‌ட்யூ பல்கலைக்கழகம் , பிர்க் நானோ தொழில்நுட்பம் மையம் , உடல் விமர்சனம் எழுத்துக்கள் , நானோ எழுத்துக்கள் , இயற்கை பொருட்கள் ,

New "metalens" shifts focus without tilting or moving | MIT News | Massachusetts Institute of Technology

Credits:
Courtesy of the researchers
Caption:
This magnified image of the metalens shows its microscopic features.
Credits:
Courtesy of the researchers
Caption:
This image shows an optical-microscope view of the metalens.
Credits:
Courtesy of the researchers
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Polished glass has been at the center of imaging systems for centuries. Their precise curvature enables lenses to focus light and produce sharp images, whether the object in view is a single cell, the page of a book, or a far-off galaxy.
Changing focus to see clearly at all these scales typically requires physically moving a lens, by tilting, sliding, or otherwise shifting the lens, usually with the help of mechanical parts that add to the bulk of microscopes and telescopes. ....

Yifei Zhang , Vladimir Liberman , Mikhail Shalaginov , Fan Yang , Jeffrey Chou , Peter Su , Carlos Rios , Christopher Roberts , Anuradha Agarwal , University Of Massachusetts At Lowell , Nature Communications , Lincoln Laboratory , Martin Corporation , University Of Central Florida , Materials Research Laboratory , Central Florida , Lockheed Martin , Juejun Hu , Phase Changing Materials , Reconfigurable Lens , Adaptive Optics , Mini Zoom Lenses , விளாடிமிர் லிபர்மேன் , விசிறி யாங் , ஜெஃப்ரி ச Ou , பீட்டர் சு ,