**EIT-Based Photonic Crystals and Photonic Logic Gate Design**

Teh-Chau Liau1, Jin-Jei Wu2, Jian Qi Shen3 and Tzong-Jer Yang2 *1Ph. D. Program in Engineering Science, College of Engineering Chung Hua University, Hsinchu, Taiwan 2Department of Electrical Engineering, Chung Hua University, Hsinchu, Taiwan 3Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentations, Zijingang Campus, Zhejiang University, Hangzhou China* 
