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研究了由不同周期结构的光子晶体组成的异质结和含耦合杂质的光子晶体异质结的位相.发现光子晶体异质结使光子晶体杂质模的反射率接近1,但反射相移不随反射率的改变而改变,反射相移只由前边的子光子晶体的禁带、通带或耦合杂质模中的子峰决定.即异质结的前边的子光子晶体的耦合杂质模中的每一子峰、每一通带或禁带对应的反射相移为2π.对多杂质耦合的结构,反射相移很灵敏,可用于制作高灵敏光子器件.以全光位相与非门为例描述全光位相逻辑门的方案和可行性.另外,这些特性对研究位相有关的新物理过程和现象有意义.
The heterojunction of photonic crystals with different periodic structures and the phases of photonic crystal heterojunction with coupling impurities were studied.The photonic crystal heterojunction was found to reflect the reflectivity of the photonic crystal impurity mode close to 1 but the reflection phase shift did not change with the reflection , The reflection phase shift is determined only by the forbidden band, the pass band or the sub-peak in the coupled impurity mode of the front sub-photonic crystal, ie, each of the coupled impurity modes of the front sub-photonic crystal of the heterojunction Each peak of the pass band or band gap corresponding to the reflection phase shift of 2π. For multi-impurity coupling structure, the reflection phase shift is very sensitive, can be used to make highly sensitive photonic devices. The scheme and feasibility of phase logic gates, in addition, these properties make sense of the new physical processes and phenomena related to the study of phases.