Weiping Cai is a Professor at the Institute of Solid State Physics, Chinese Academy of Sciences. He obtained a B.S. (1982) and Master's (1984) at Northeast University, and PhD at the Huazhong University of Science & Technology (1995) in Material Sciences. Since 1997, he has been working at the Institute of Solid State Physics, Chinese Academy of Sciences, as a professor focusing on the synthesis, assembly, and physics and chemistry of nanoparticles, as well as micro/nanostructured arrays and devices. His research interests mainly focus on micro/nanostructured metamaterials, devices and sensors; the physics and chemistry of nanoparticles; and micro/nanopowder materials and applications.