Articles tagged with Metamaterials
Researchers at US DOE's Ames Laboratory have developed a material with a negative refractive index for visible light, marking a significant advance in the field of metamaterials. The silver-based mesh-like material has a refractive index of -0.6 at the red end of the visible spectrum.
The team created a cloak using metamaterials arranged in concentric circles, which confers specific electromagnetic properties. The cloak appears to have properties similar to free space when viewed externally, reducing reflection and shadow detection.
Researchers at Ames Laboratory have successfully created metamaterials that can refract light at negative angles, potentially enabling the development of superlenses for medical imaging. This achievement demonstrates a new way to manipulate light's path and speed, moving closer to Einstein's theory of relativity.
Researchers at Kent State University develop negative index materials, rewriting the laws of optics and enabling super-resolution lenses, non-destructive optical tweezers, and more. The five-year project aims to create NIMs for visible light spectrum.
Researchers at Duke University have reported a theoretical blueprint for an invisibility cloak made of metamaterials. The cloak can hide objects so well that observers are unaware of their presence, similar to how water flows around a smooth rock in a river. This technology has potential applications in wireless communications and acou...
Researchers at Public University of Navarre develop innovative left-handed metamaterials for miniaturized mobile devices, enabling reduced size and improved signal control. The breakthrough technology uses Split Ring Resonators to achieve extremely low losses and has potential applications in wireless communication systems.
Scientists develop materials that respond magnetically to THz, infra-red, and visible radiation, enabling applications in biological and security imaging. The discovery marks a significant step towards creating perfect lenses that can focus features smaller than the wavelength of light.
A team of physicists and engineers created metamaterials that respond magnetically to terahertz radiation, extending their properties to the terahertz range. This discovery has the potential to enable new applications in areas like weather guidance, security, and biomedical imaging.
Researchers at the University of Toronto have discovered a new physics phenomenon that uses metamaterials to create a focused beam of light. By amplifying evanescent waves and correcting their phase, these lenses could revolutionize the engineering of electronic devices at the nanometre scale.