飞秒激光赋能液晶光子学
Femtosecond laser-empowered liquid crystal photonics
王钰 1张一鸣 1谢群 1张心正1
作者信息
- 1. 南开大学 物理科学学院/泰达应用物理研究院 弱光非线性光子学教育部重点实验室,天津 300071;南开大学 液晶光子学中斯联合研究中心,天津 300071
- 折叠
摘要
液晶作为一种典型的软物质材料,具有独特的物理性质和可控的分子结构,已经成为柔性光电子器件、软凝聚态物理等领域的交叉研究前沿.飞秒激光的高峰值功率、短脉冲特性与灵活且高精度的双光子聚合加工技术,为设计、制造新型可调控的液晶光子学微结构,操纵其中液晶分子的线性、非线性响应提供了有效的实验方案.利用飞秒激光赋能液晶光子学不仅能推动软物质这一新兴学科的快速发展,同时也将为未来光学器件的开发带来新的机遇.本文综述了利用飞秒激光诱导液晶中的非线性效应、飞秒激光加工液晶弹性体和利用飞秒激光加工的微结构实现液晶分子的面外取向及在液晶光子学器件方面的诸多应用,并介绍近年来有关方向在实际应用领域的研究进展.
Abstract
Liquid crystal,as a kind of typical soft material,has unique physical properties and controllable molecular structures,which has become the research frontier in the fields of flexible optoelectronic devices and soft condensed matter physics.The high peak power and short pulse duration characteristics of femtosecond laser combined with the flexible and high-precision two-photon polymerization processing technology provide an effective experimental scheme for the design and manufacture of novel regulatable liquid crystal photonics microstructures to manipulate the linear and nonlinear responses of the liquid crystal molecules.Femtosecond laser-empowered liquid crystal photonics can not only promote the rapid development of soft matter,but also bring new opportunities for the development of optical devices in the future.In this paper,the nonlinear effects in liquid crystals induced by femtosecond laser,the fabrication of liquid crystal elastomers by using femtosecond laser processing technology and the realization of out of plane orientation of liquid crystal molecules by microstructures fabricated by femtosecond laser are reviewed,and the recent research progress of the relevant directions in the field of practical application is also introduced.
关键词
液晶/飞秒激光/双光子聚合加工/非线性/光子学微结构Key words
liquid crystal/femtosecond laser/two-photon polymerization processing/nonlinear/photonics microstructure引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据