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中文摘要：
利用微腔之间的立体耦合,提出了基于无源材料硅的双层光子晶体薄板H1（DLPCS-H1）腔,薄板之间为空气层.使用三维时域有限差分方法和Padé近似方法分析了DLPCS-H1腔的偶极模的场分布和品质因子.通过对中间空气层高度的优化使DLPCS-H1腔的偶极模的品质因子得到了显著的提高,大约为单层光子晶体薄板H1腔的偶极模的品质因子的4倍.此外,还研究了三层光子晶体薄板H1腔,它的偶极模的品质因子约为单层光子晶体薄板H1腔的偶极模的品质因子的7倍.
英文摘要：
Inspired by the idea of the stero-coupling,we propose a new sandwich-like photonic crystal microcavity which is composed of double layer photonic crystal slabs H1（DLPCS-H1） cavity with an air layer in between.We calculate the electromagnetic field distribution and the quality factor of the dipole mode by the three-dimensional finite-difference time-domain method and the Padé approximation method.Through carefully analyzing the effect of the air layer height on the quality factor of the dipole mode,we obtain an optimized DLPCS-H1 cavity in which the height of intermediate air layer is about 0.5a（a is the lattice constant,a = 420 nm）.In this cavity,the quality factor of the dipole mode is 4 times as large as that of the conventional single layer photonic crystal slab H1 cavity.Furthermore,we study the three-layer photonic crystal slabs H1 cavity,and the quality factor of its dipole mode is increased over 7 times.
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