English: Caption - A schematic of the first 3-D "fishnet" metamaterial that can achieve a negative index of refraction in visible and near-infrared wavelengths. 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 development that could help form the basis for higher resolution optical imaging, nanocircuits for high-powered computers.
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National Science Foundation - This is from NSF online publication entitled Current; September 2008 edition.
{{Information |Description={{en|1=This is from NSF online publication entitled [http://www.nsf.gov/news/newsletter/sep_08/pdf/NSF_Current_Sep_2008.pdf Current; September 2008] edition.}} |Source=National Science Foundation |Author=Jason Valentine at UC B