Polymer-stabilized liquid crystal microlens array with large dynamic range and fast response time.
Polymer-stabilized liquid crystal microlens array with large dynamic range and fast response time.
复制标题
DOI：
10.1364/ol.38.003144
复制
发表时间：
2013-08
期刊：
影响因子：
3.6
通讯作者：
H. Ren;Su Xu;Shin‐Tson Wu
中科院分区：
文献类型：
--
作者：
H. Ren;Su Xu;Shin‐Tson Wu
本文报道了一种动态范围大、响应时间快的聚合物稳定液晶微透镜阵列。顶部基板具有平面氧化铟锡（ITO）电极，而底部基板具有两个图案化的ITO电极，用于产生边缘场和均匀纵向场。利用边缘场在LC/单体层中产生所需的梯度折射率分布，随后通过UV固化使其稳定以形成聚合物网络。为了调整焦距，我们施加纵向场来改变透镜的形状。这种微透镜阵列具有动态范围大、响应时间快、机械稳定性好等优点。
We report a polymer-stabilized liquid crystal (LC) microlens array with a large dynamic range and fast response time. The top substrate has a planar indium-tin oxide (ITO) electrode, while the bottom substrate has two patterned ITO electrodes for generating a fringing field and uniform longitudinal field. The fringing field is utilized to create the desired gradient refractive index profile in the LC/monomer layer, which is later stabilized by UV curing to form polymer networks. To tune the focal length, we apply a longitudinal field to change the lens shape. This microlens array offers several attractive features, such as large dynamic range, fast response time, and good mechanical stability.