Disordered dielectric high reflectors with broadband from visible to infrared
Disordered dielectric high reflectors with broadband from visible to infrared
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DOI：
10.1063/1.123313
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发表时间：
1999-05
影响因子：
4
通讯作者：
Hong-qiang Li;Guochang Gu;Hong Chen;Shi-Yao Zhu
中科院分区：
文献类型：
--
作者：
Hong-qiang Li;Guochang Gu;Hong Chen;Shi-Yao Zhu
通过适当的结构，一维（1D）二元非周期介电多层膜可以具有紧凑的结构，并提供从可见光到红外的广泛扩展的阻带，并且对入射角不敏感。这一引人注目的现象归因于布拉格反射和无序引起的光局域化的综合作用。描述一维二元非周期电介质多层膜的特征参数已明确定义。 MgF2 和 GaP 的材料参数用于对一维真实器件进行建模。通过与具有相同光学长度、层数和无序度的二元λ0/4堆叠反射器进行比较，提出了优化设计。
With proper structure, one-dimensional (1D) binary nonperiodic dielectric multilayers can own compact strucuture and provide widely extended stop band from visible to infrared which is insensitive to the angle of incidence. The striking phenomenon attributes to the combining effect of Bragg reflection and light localization induced by disorder. The characteristic parameters to describe 1D binary nonperiodic dielectric multilayers are well defined. Material parameters of MgF2 and GaP are used to model 1D realistic device. Optimal design is suggested by comparison to binary λ0/4 stack reflectors with the same optical length, number of layers and degree of disorder.