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介质光栅导模共振耦合波分析
引用本文:周传宏,王磊,聂娅,王植恒.介质光栅导模共振耦合波分析[J].物理学报,2002,51(1):68-73.
作者姓名:周传宏  王磊  聂娅  王植恒
作者单位:四川大学物理系,成都,610064
基金项目:国家自然科学基金 (批准号 :698880 0 2 );;中国科学院光电技术研究所微细加工光学技术国家重点实验室资助的课题
摘    要:导模共振是由于光栅介质内高级次子波耦合进光栅所支持的泄漏模中,导致传播波能量重新分布的结果.采用严格的耦合波方法,通过分析波导的导波模式,正确估计出弱调制介质光栅导模共振的位置.并对导模共振与光栅厚度、基底厚度以及入射角的关系作了讨论.通过采用抗反射设计,获得了具有对称、低旁带特点的窄带共振峰 关键词: 导模共振 耦合波

关 键 词:导模共振  耦合波
收稿时间:2000-11-19
修稿时间:2000年11月19

The rigorous coupled-wave analysis of guided-mode resonance in dielectric gratings
Zhou Chuan-Hong,Wang Lei,Nei Ya and Wang Zhi-Heng.The rigorous coupled-wave analysis of guided-mode resonance in dielectric gratings[J].Acta Physica Sinica,2002,51(1):68-73.
Authors:Zhou Chuan-Hong  Wang Lei  Nei Ya and Wang Zhi-Heng
Abstract:Guided mode resonance in a dielectric grating results from a redistribution of energy in propagating waves when high\|order spatial harmonics are coupled to the leaky wave guide modes sustained by the grating. In this paper, we have analyzed the guided wave modes in a wave guide with a rigorous coupled wave approach. From the analyzed results, we have estimated properly the location of the guided mode resonance in a weakly modulated dielectric grating. We also discussed the relations among the guided mode resonance, grating layer thickness, substrate thickness, and the incident angle. By adopting a design for anti refection, the symmetric guided mode resonance with low side band was achieved.
Keywords:Guided  mode resonance  Coupled  wave    
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