A concave photonic crystal waveguide with a corrugated surface for high-quality focusing

作者：Wu Hong; Jiang Liyong^*; Li Haipeng; Jia Wei; Zheng Gaige; Qiang Haixia; Li Xiangyin

来源：Chinese Optics Letters, 2011, 9(1): 011301.

DOI：10.3788/COL201109.011301

A concave two-dimensional (2D) photonic crystal waveguide (PCW) with corrugated surface is theoretically used as a focusing structure. To design this structure, a genetic algorithm is combined with the finite-difference time-domain method. For PCWs with different degrees of concaveness, the power reaches about 80% at different focusing points when the morphology of the concave surface is optimized. More importantly, the

• 出版日期2011-1-10
• 单位南京理工大学; RIKEN