激光与光电子学进展, 2017, 54(3): 030001, 网络出版: 2017-02-01

二维平板光子晶体微腔与波导的耦合

Coupling of Two-Dimensional Slab Photonic Crystal Micro-Cavities and Waveguides
作者单位

1中国科学院物理研究所光物理重点实验室, 北京 100190

2中国科学院大学, 北京 100049

摘要
光子晶体是介质介电常数呈周期性排布的结构,具有光子带隙,处于光子带隙中的电磁波无法在其中传播。二维平板光子晶体是通过在衬底上刻蚀周期性排列的空气孔柱而形成的结构,由于其具有优良的控制光传播的特性而得到广泛的研究和应用。介绍了在二维平板光子晶体中引入缺陷形成的光子晶体微腔和波导的方法和性质。通过调整几何参数控制微腔与波导之间的耦合,实现基于二维平板光子晶体的全光开关、光存储、单光子源等光学器件并讨论其在量子光学网络中的应用。
Abstract
Photonic crystal is a structure with periodic dielectric constant and it has photonic band gap, in which the electromagnetic wave can not propagate in the structure. Two-dimensional slab photonic crystals can be fabricated by etching periodic air holes on a slab substrate, which has been investigated and applied extensively because of their good control of light propagation. Photonic crystal micro-cavities and waveguides can be achieved by introducing defects in the two-dimensional slab photonic crystal. The coupling of micro-cavities and waveguides can be controlled by adjusting geometric parameters, so as to realize the optical devices based on two-dimensional slab photonic crystals such as optical switching, optical storage and single photon source, etc. Properties of the micro-cavities and waveguides of two-dimensional slab photonic crystals are introduced, and their coupling control and potential applications in optical quantum information processing are discussed as well.
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