Author：Yong Zhang, Cheng Zeng, Danping Li, Ge Gao, Zengzhi Huang, Jinzhong Yu, and Jinsong Xia
Abstract：A design for enhancing the quality (Q) factor of a photonic crystal ring resonator (PCRR) is introduced. The highest Q factor based on simulations is 121,000. The analysis of momentum space distributions of the electric field profile for PCRR resonance shows that a high Qfactor of a PCRR is attributed to the reduction of tangential k-vector component inside the leaky region. A high Qfactor of 75,200 is experimentally demonstrated for a modified PCRR on a silicon-on-insulator wafer. The high-Q-factor PCRR demonstrated here will be beneficial for channel drop filters, lasers, sensors, and other applications.
Publishing source：Optics Letters
