1. National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
2. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics; Shanghai Jiao Tong University; Shanghai 200240 China
3. Dept. of Photonics & Display Institute; National Chiao Tung University; Hsinchu 300 Taiwan