激光与光电子学进展, 2019, 56 (4): 041601, 网络出版: 2019-07-31
聚合物交替多层聚碳酸酯/聚甲基丙烯酸甲酯近红外高反膜的设计 
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Design of Polycarbonate/Polymethyl Methacrylate Polymer Multilayer Alternating Films with High Reflectivity in Near-Infrared Region
薄膜 近红外区域 高反射 聚碳酸酯/聚甲基丙烯酸甲酯 微层共挤 遗传算法 thin films near-infrared region high reflectivity polycarbonate/polymethyl methacrylate micro-nano multilayer co-extrusion genetic algorithm
摘要
提出了一种能够实现近红外区域(780~1100 nm)高反射的聚合物交替多层聚碳酸酯(PC)/聚甲基丙烯酸甲酯(PMMA) 周期性光学薄膜的设计方案,验证了利用微纳层叠共挤设备制备特殊多层光学膜结构的可行性。利用遗传算法搜索出4个周期的最优布拉格中心波长,得出了最优膜的总厚度。仿真了4个周期叠加多层膜的光谱特性,讨论了入射角及厚度误差对多层膜近红外区域总反射率的影响。研究结果表明,所提方案满足对太阳光的隔热及内部智能采光的需求。
Abstract
A scheme for designing polycarbonate (PC)/polymethyl methacrylate (PMMA) polymer alternating multilayer optical films with high reflectivity in near-infrared region (780~1100 nm) is proposed. The feasibility for the fabrication of the special multilayer optical films by the micro-nano laminated co-extrusion device is demonstrated. The optimal four-periodic Bragg center wavelength is retrieved by the genetic algorithm, and the optimum film thickness is obtained. The spectral characteristics of four-periodic superimposed multilayer films are simulated and the effects of thickness error and incident angle on the total reflectivity of the multilayer film in the near-infrared region are discussed. The results show that the proposed scheme can meet the requirements of solar heat insulation and intelligent interior lighting.
黄亮, 杨卫民, 林承友, 焦志伟, 石美浓. 聚合物交替多层聚碳酸酯/聚甲基丙烯酸甲酯近红外高反膜的设计[J]. 激光与光电子学进展, 2019, 56(4): 041601. Liang Huang, Weimin Yang, Chengyou Lin, Zhiwei Jiao, Meinong Shi. Design of Polycarbonate/Polymethyl Methacrylate Polymer Multilayer Alternating Films with High Reflectivity in Near-Infrared Region[J]. Laser & Optoelectronics Progress, 2019, 56(4): 041601.
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