& Nanjing University VING 独特的色散关系、态密度 及场增强效应 Dielectric Superlattice Laboratory Nat.Lab.Microstructures Dr.Tao Li taoli@nju.edu.cnDielectric Superlattice Laboratory Nat. Lab. Microstructures Dr. Tao Li taoli@nju.edu.cn Nanjing University