上游充通大 SHANGHAI JIAO TONG UNIVERSITY 倍频、和频、差频 E〉 P(2w1)=∈0X2E 倍频 P(w1+o2)=2e0X2E1E2 (SFG), 和频 P(w1-w2)=2e0X2)E1E (DFG), 差频 P(0)=2e0x2(E1E*+E2E) (OR). TFT-LCD关键材料及枝术国家工程实验室 光电材料与器件中心 4 National Engineering Lab for TFT-LCD Materials and Technologies Center for Opto-electronic Materials and Devices4 倍频、和频、差频 倍频 差频 和频