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用于可见光区的薄膜光子晶体全角度反射器

顾培夫 黄弼勤 郑臻荣

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用于可见光区的薄膜光子晶体全角度反射器

顾培夫, 黄弼勤, 郑臻荣

Thin-film photonic crystal omnidirectional reflector used in visible region

Gu Pei-Fu, Huang Bi-Qin, Zheng Zhen-Rong
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  • 采用角域叠加方法可以有效地获得可见光区域的一维光子晶体全角度反射器. 4个TiO2 /SiO2薄膜光子晶体用角域叠加形成全角度反射的相对带宽为4133%, 而在同样条 件下用常规的频域叠加方法合成的全角度反射的相对带宽仅为1426%. 阐述了角域叠加的 基本原理,计算给出了可见光区域的全角度反射器,并提出用角域叠加方法可方便地构建频 域叠加所无法实现的紫外区域的全角度反射器.
    Thin_film one_dimensional photonic crystal omnidirectional reflector used in vis ible region can be achieved by using angle domain overlapping reflectance bands. By using this method, the relative band width of the omnidirectional reflector consisting of four TiO2/SiO2 thin_film photonic crystals i s up to 41 33%. By comparison, the relative band width of the omnidirectional reflector c onstructed under the same condition as the above is only 1426% by using the co nventional frequency domain overlapping. The basic principle of the angle domai n overlapping is described. A thin_film one_dimensional photonic crystal omnidir ectional reflector used in visible region is calculated and given. Meanwhile, th e omnidirectional reflector used in ultraviolet region can be constructed by usi ng this new method, which cannot be obtained by the conventional method.
    • 基金项目: 国家自然科学基金(批准号:60078001,60478038)资助的课题.
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  • 文章访问数:  6182
  • PDF下载量:  1875
  • 被引次数: 0
出版历程
  • 收稿日期:  2004-10-26
  • 修回日期:  2005-01-20
  • 刊出日期:  2005-04-05

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