反对称艾里光束的构造与应用研究

项目名称： 反对称艾里光束的构造与应用研究

项目编号： No.11474072

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： 苑勇贵

作者单位： 哈尔滨工程大学

项目金额： 95万元

中文摘要： 本项目拟开展反对称艾里光束的构造及其特性研究，反对称艾里光束是在对称艾里光束的基础上，通过反对称的方式构造出来的。它可以由特殊设计的二维微结构光纤制备出来。这种光纤由包层、多组阵列光波导纤芯构成，每一组阵列纤芯的空间排布满足或近似满足艾里函数，当向光纤一端输入多个高斯光束时，通过纤芯之间的光耦合，光纤另一端每一组阵列纤芯的出射光束的光强分布都满足或近似满足于艾里光束的光强分布。通过对这种阵列耦合所生成的艾里光束进行重构组合，就能制备出对称艾里光束和反对称艾里光束。所构造的反对称艾里光束在纤端出射时，继承了艾里光束的三大特性，即光束具有横向加速、无衍射和自愈能力。作为应用，本项目拟开展基于反对称艾里光束的光学干涉与传输特性分析以及微粒操控等研究。该项研究对微光学领域具有十分重要的学术研究价值和广泛的应用前景。

中文关键词： 反对称艾里光束；对称艾里光束；艾里光纤器件；干涉；光镊

英文摘要： The project intends to carry out the research of antisymmetric Airy beam configuring and charecteristics. Antisymmetric Airy beams is based on symmetric Airy beams, reconstructed and arraged waveguides arrays by symmetric Airy beams. It can be designed and manufactured by a two-dimensional microstructure fiber. This special designed fiber consist of a cladding and a multi core optical waveguides array inside in the same cladding. Each array core spatial arrangement meet or satisfy the Airy function approximation. When a plurality Gaussian beam input at the optical fiber end, the outgoing light beam intensity distribution is satisfied or approximately satisfied Airy intensity distribution at the output end due to the optical coupling between the fiber cores. Through this array of coupling, The symmetric and antisymmetric Airy beams will be able to generated by the combination of reconstruction. The constructed antisymmetric Airy beams at the output end, the three Airy beams characteristics have been inherited, ie beam with lateral acceleration, no diffraction and self-healing capabilities. As an application, the project intends to study the propogation and interference properties of the antisymmetric Airy beams. Also we will develop a new optical tweezers for particle trapping and manipulating by using the antismmetric Airy beams. The study results of this project is very important and has potential applications in the field of micro-optics.

英文关键词： antisymmetric Airy beam;symmetric Airy beams;Airy beam component;Interference;Optical tweezers