Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

Manhasset, N.Y. — Purdue researchers will detail a metamaterial with a negative refractive index in the near-infrared portion of the spectrum in a paper to appear in the journal Optics Letters next ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

These snapshots in time show a beam exciting a prism made of square loops. The metamaterial prism shows positive or negative refraction angle. No natural materials contain a negative index of ...

Berkeley -- Scientists at the University of California, Berkeley, have for the first time engineered 3-D materials that can reverse the natural direction of visible and near-infrared light, a ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This plaster model was most likely ...

will receive part of a $5 million Pentagon grant as part of a five-year project. The Department of Defense project will focus on development of what the Center calls "negative index of refraction ...