Optimization of dichromatic filters based on photonic heterostructures of Si/MgF2

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• 作者：Huihuan Guan ; Peide Han ; ^{hanpeide@126.com} ; ^{hanpeide@tyut.edu.cn} ; Yuping Li ; Hongwei Zhou ; Xue Zhang ; Ruizhen Zhang
• 关键词：Photonic heterostructure ; Photonic crystals ; Dichromatic filters ; Visible range
• 刊名：Optics Communications
• 出版年：2012
• 期刊代码：50_00304018
• 类别：ph
• 出版时间：15 May, 2012
• 卷：285
• 期：10-11
• 页码：2656-2659
• 文件大小：463 K

摘要

The current research work presents the theoretical results of demonstrating novel dichromatic filters, which consist of blue and yellow light. A one-dimensional photonic crystal or photonic heterostructure of Si/MgF₂ is analyzed in detail by fully considering the effects of structural parameters using the transfer matrix method. The position and the number of defect modes are shown to have relationships with the repeat cycle counts of various photonic crystals. When the photonic heterostructures have the optimized structural parameters, defect modes can be obtained with high transmittances located in blue and yellow light. This photonic heterostructure is expected to be used in dichromatic filters with wide non-transmission range in a visible range.