• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymers >Light-Driven Rotation and Pitch Tuning of Self-Organized Cholesteric Gratings Formed in a Semi-Free Film
【24h】

Light-Driven Rotation and Pitch Tuning of Self-Organized Cholesteric Gratings Formed in a Semi-Free Film

机译：半自由膜中形成的自组织胆甾型光栅的光驱动旋转和螺距调整

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cholesteric liquid crystal (CLC) has attracted intensive attention due to its ability to form a periodic helical structure with broad tunability. CLC gratings in open systems are especially promising in sensing and micromanipulation. However, there is still much to learn about the inherent mechanism of such gratings. We investigate the light-driven rotation and pitch-tuning behaviors of CLC gratings in semi-free films which are formed by spin-coating the CLC mixtures onto planarly photoaligned substrates. The doped azobenzene chiral molecular switch supplies great flexibility to realize the continuous grating rotation. The maximum continuous rotational angle reaches 987.8°. Moreover, dependencies of light-driven rotation and pitch tuning on the dopant concentration and exposure are studied. The model of director configuration in the semi-free film is constructed. Precise beam steering and synchronous micromanipulation are also demonstrated. Our work may provide new opportunities for the CLC grating in applications of beam steering, micromanipulation, and sensing.
机译：胆甾型液晶（CLC）由于能够形成具有宽可调性的周期性螺旋结构而备受关注。开放系统中的CLC光栅在传感和显微操作方面特别有前途。然而，关于这种光栅的内在机理仍有许多要学习的知识。我们研究了半自由膜中CLC光栅的光驱动旋转和螺距调谐行为，该膜是通过将CLC混合物旋涂到平面光致对准基板上而形成的。掺杂的偶氮苯手性分子开关为实现光栅的连续旋转提供了极大的灵活性。最大连续旋转角度达到987.8°。此外，研究了光驱动旋转和螺距调谐对掺杂剂浓度和曝光的依赖性。构建了半自由胶卷中的导演配置模型。还演示了精确的光束转向和同步微操纵。我们的工作可能会为光束转向，微操纵和传感应用中的CLC光栅提供新的机会。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号