"MATERIALS: Metamaterials tackle communications wavelengths"

The world's first communications-wavelength metamaterial was recently demonstrated by a Princeton University design fabricated at Alcatel-Lucent. The clever semiconductor architecture sidesteps the need to craft nanoscale mechanical structures by alternating layers of indium gallium arsenide with layers of aluminum indium arsenide.
Text: http://www.eetimes.com/showArticle.jhtml?articleID=202403320