飞秒矢量光场与各向异性材料相互作用研究

项目名称： 飞秒矢量光场与各向异性材料相互作用研究

项目编号： No.11474052

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 顾兵

作者单位： 东南大学

项目金额： 90万元

中文摘要： 矢量光场与物质相互作用导致了众多不同于标量光场的新颖效应，在光镊、超分辨显微和非线性光学等方面得到了广泛应用。本项目提出运用飞秒矢量光场研究材料的各向异性非线性光学效应，利用各向异性材料实现对矢量光场的偏振态调控。围绕飞秒矢量光场与各向异性非线性光学材料相互作用，主要研究飞秒矢量光场激发各向异性材料导致的新颖非线性光学效应，分析各向异性材料对矢量光场的偏振态调控，发展基于偏振态控制的全光光子学器件。通过本项目的实施建立和发展矢量光场与各向异性材料相互作用的非线性极化理论；揭示飞秒矢量光场与各向异性非线性光学材料相互作用后光场的传输和偏振态演化规律，期待发现新颖的非线性光学效应；掌握各向异性非线性光学材料对矢量光场偏振态调控的规律和最佳途径，发展各向异性光散射器、偏振态控制的光限幅器和偏振灵敏的光探测器。

中文关键词： 非线性光学效应；矢量光场；各向异性非线性光学材料；焦场工程

英文摘要： Completely different from the scalar light field, the interaction of vectorial light field with matter results in a lot of novel optical effects and has received particularly attention due to their potential applications in optical tweezers, super-resolution optical microscopy, and nonlinear optics. Investigations of the anisotropic nonlinear optical effects of materials under the excitation of femtosecond vectorial light fields and manipulations of the state of polarization (SoP) of vectorial light fields with the aid of anisotropic media are proposed. In this project, we focus our attention to investigate the interaction of anisotropic media with femtosecond vectorial light fields. Firstly, the novel nonlinear optical effects of materials induced by femtosecond vectorial light fields will be studied. Secondly, the SoP distribution of vectorial light field manipulated by an anisotropic material will be analyzed in detail. And that all-optical nonlinear photonics devices based on the SoP control will be presented. By performing this project, the nonlinear polarization theory for the interaction of vectorial light field with anisotropic media will be established and developed. The propagation behaviours and the SoP evolutions of vectorial light fields through the anisotropic media will be revealed. Correspondingly, the novel nonlinear optical effects will be found. In addition, the rule and optimal avenue of manipulating SoP by the use of an anisotropic nonlinear optical material will be found. The light anisotropic scatterer, the polarization-control optical limiter, and the polarization-sensitive photodetector will be presented.

英文关键词： Nonlinear optical effect;Vectorial light field;Anisotropic nonlinear optical material;Focus engineering