序号:1 题目:Three-dimensional optical metamaterial with a negative refractive index 作者:Jason Valentine, Shuang Zhang, Thomas Zentgraf, Erick Ulin-Avila, Dentcho A. Genov, Guy Bartal, Xiang Zhang 期刊:Nature 刊号:455, 376-379 (11 August 2008) doi:10.1038/nature07247 Letter 链接:http://www.nature.com/nature/journal/v455/n7211/full/nature07247.html