连松友,姜国利,余云鹏,林舜辉,林钢,徐从康,王江涌.蓝光过滤多层功能薄膜的遗传算法设计[J].表面技术,2017,46(8):170-175
蓝光过滤多层功能薄膜的遗传算法设计
Genetic Algorithm Design for Blue Light Filter Multilayer Functional Film
投稿时间:2017-02-25  修订日期:2017-08-20
DOI:10.16490/j.cnki.issn.1001-3660.2017.08.028
中文关键词:  遗传算法  蓝光过滤  多层膜  平均反射率  目标反射率  增透与增反
英文关键词:genetic algorithm  blue light filtering  multilayer film  average reflectivity  target reflectivity  anti-reflection and enhancement reflection
基金项目:广东省省级科技计划项目(2017A010103021)
作者单位
连松友 汕头大学 物理系,广东 汕头 515063 
姜国利 汕头大学 物理系,广东 汕头 515063 
余云鹏 汕头大学 物理系,广东 汕头 515063 
林舜辉 汕头大学 物理系,广东 汕头 515063 
林钢 汕头超声显示器有限公司,广东 汕头 515000 
徐从康 无锡舒玛天科新能源技术有限公司,无锡 214000 
王江涌 汕头大学 物理系,广东 汕头 515063 
AuthorInstitution
LIAN Song-you Department of Physics, Shantou University, Shantou 515063, China 
JIANG Guo-li Department of Physics, Shantou University, Shantou 515063, China 
YU Yun-peng Department of Physics, Shantou University, Shantou 515063, China 
LIN Shun-hui Department of Physics, Shantou University, Shantou 515063, China 
LIN Gang Shantou GoWorld Display Co., Ltd, Shantou 515000, China 
XU Cong-kang Wuxi Xumatic New Energy Technology Co., Ltd, Wuxi 214000, China 
WANG Jiang-yong Department of Physics, Shantou University, Shantou 515063, China 
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中文摘要:
      目的 设计出一种在380~455 nm波段具有高反射率,但在500~760 nm波段具有低反射率的多层薄膜结构。方法 采用遗传算法,采取截断选择策略,并引入小生境技术,选择灵活性较好的容差型评价函数,通过改变目标反射率,使功能薄膜在可见光波段具有增透与增反两种特性。采用八层不同折射率材料交替结构,计算得出满足光谱特性要求的全局膜系结构参数。结果 当材料为硫化锌和氟化镁,厚度为324、142、68、46、51、51、56、145 nm时,380~455 nm波长处的平均反射率高达88.54%,500~760 nm波长处的平均反射率仅为2.00%。由几种常用光学薄膜材料的不同搭配,发现材料的折射率差与两波段的平均反射率差呈现相同趋势。当两种材料的折射率差为0.92时,两波段的平均反射率差为86.54%。结论 采用的遗传算法可以简单有效地对多层薄膜结构进行优化,为获得较为理想的蓝光过滤功能薄膜,应尽可能选择折射率差大的两种材料。
英文摘要:
      The work aims to design a multilayer film structure which exhibits high average reflectivity in 380~455 nm waveband, and low average reflectivity in 500~760 nm waveband. Genetic algorithm and truncation selection strategy were adopted to design the multilayer films structure by introducing ecological niche technology. Tolerance evaluation function of good flexibility was chosen to endow functional film with anti-reflection and enhancement reflection characteristics in visible light band by changing target reflectivity. Overall film structure parameters required to meet spectral characteristic requirements were obtained by using eight-layer structure of alternate refractive index materials. When the materials were zinc sulfide and magnesium fluoride, and were 324, 142, 68, 46, 51, 51, 56 and 145 nm thick, respectively, average reflectivity of the film was up to 88.54% in 380~455 nm waveband, and only 2.75% in 500~760 nm waveband. According to different collocation of several common optical film materials, refractive index difference of refractive index materials shared the same trend with average refractive index difference between two wavelengths band. The difference of average reflectivity between two wavebands was 86.54%. When the refractive index difference between two materials was 0.92, average refractive index difference in two wavebands was 86.54%. The algorithm can effectively optimize the multilayer film structure. Two materials differing a lot in refractive index shall be selected as far as possible to obtain ideal blue light filter functional film.
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