摘要
二线缺点 photonic 晶体(PC ) 形成的交叉的新机制波导数字地用有限差别的时间域方法被调查。结果证明规范的串音比 10 <SUP>-4</SUP> 小；思考比 10 <SUP>-3</SUP>, 小，传播比 0.999 大。作者分析物理起源并且发现在交叉多模式区域的一个修改 self-imaging 过程是优秀表演的主要原因。基于的交叉可以在 PC 光电路发现潜在的应用的这种多模式干扰。
A new mechanism of intersection formed by two line defect photonic crystal （PC） waveguides are numerically investigated using the finite-diFference time-domain method. The results show that the normalized crosstalk is smaller than 10^-4; the reflection is smaller than 10^-3, and the transmission is larger than 0.999. The authors analyse the physical origins and find that a modified self-imaging process in the intersected multi-mode region is the main reason of the excellent performance. This kind of multi-mode interference based intersection may find potential applications in PC optical circuits.
