Fabrication of large curvature microlens array using confined laser swelling method.
Fabrication of large curvature microlens array using confined laser swelling method.
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DOI：
10.1364/ol.38.003044
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发表时间：
2013-08
期刊：
影响因子：
3.6
通讯作者：
J. Shao;Yucheng Ding;Haipeng Zhai;Bing Hu;Xiangming Li;Hongmiao Tian
中科院分区：
文献类型：
--
作者：
J. Shao;Yucheng Ding;Haipeng Zhai;Bing Hu;Xiangming Li;Hongmiao Tian
本文提出了一种制作大曲率微透镜阵列的受限激光膨胀法。与传统自由激光溶胀中的聚合物不同，溶胀聚合物（在此为甲基红掺杂的聚甲基丙烯酸甲酯）被限制在由基底和柔性覆盖层形成的壁之间。由于膨胀发生在封闭的空间中，分解的片段保留在基质中，导致在柔性覆盖层侧部处的大隆起。结果表明，这些驼峰是由传统方法获得的几十倍，这种方法具有潜在的高效率大曲率微透镜的制作。
This Letter proposes a confined laser swelling method to fabricate large curvature microlens arrays. Unlike the polymers in conventional free laser swelling, the swelling polymer, which is methyl red-doped polymethyl methacrylate here, is confined between walls formed by a substrate and a flexible cover layer. Because swelling occurs in an enclosed space, decomposed segments remain in the matrix, resulting in a large hump at the side of the flexible cover layer. The results show that these humps are tens of times higher than those acquired by conventional methods and this method has potential for high efficiency large curvature microlens fabrication.