利用复杂光栅结构制备涡旋光  

GENERATION OF VORTEX LIGHT USING COMPLEX GRATING STRUCTURES

作　　者：刘璐 杨大杰 李宁[1] 付星球 黄霞[1] LIU Lu;YANG Dajie;LI Ning;FU Xingqiu;HUANG Xia(Mathematics and Physics Department,North China Electric Power University,Beijing 102200)

机构地区：[1]华北电力大学数理学院,北京102200

出　　处：《物理与工程》2024年第6期188-192,共5页Physics and Engineering

基　　金：中央高校基本科研业务费专项资金资助(项目号:2024MS071);2023年高等学校教学研究项目资助(项目号:DJZW202309hb)。

摘　　要：涡旋光的研究与应用是当前光学领域的前沿和热点。本文介绍了一种方便实用的涡旋光制备方法。我们首先利用涡旋光与高斯光的干涉,产生了叉形光栅结构。然后采用喷墨打印技术,将此叉形光栅图案打印在激光打印胶片上。最后通过平面光束照射叉形光栅,利用胶片上黑色区域的光吸收效应,实现了光线通过光栅空隙处的衍射,从而成功制备了具有不同拓扑荷数的涡旋光。与传统方法相比,我们提出的涡旋光制备方法不需要复杂的光学设备或昂贵的材料,大大降低了实验的技术门槛和经济成本,使涡旋光的制备更加普及和可行。此外,这种技术的简易性和低成本特性,使其在光学实验教学和基础科学研究中具有广泛的应用前景,尤其适合于资源有限的实验环境。Research and applications of vortex light are at the forefront and hot topics in the field of optics.In this paper,we introduce a convenient and practical method for preparing vortex light.Initially,we utilize the interference between vortex light and Gaussian light to generate a cross-shaped grating structure.Subsequently,employing inkjet printing technology,we print this cross-shaped grating pattern onto laser printing film.Finally,by illuminating the cross-shaped grating with a plane beam,we utilize the light absorption effect of the black areas on the film to achieve diffraction of light through the grating gaps,thus successfully preparing vortex light with different topological charges.Compared to traditional methods,this method does not require complex optical equipment or expensive materials,significantly reducing the technical barriers and economic costs of experiments,thus making vortex light generation more popular and feasible.Additionally,the simplicity and low-cost nature of this technique give it a broad application prospect in optical experimental teaching and basic scientific research,especially suitable for experimental environments with limited resources.

关 键 词：干涉与衍射 叉形光栅 涡旋光 激光打印胶片 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]