摘要
衍射和光栅是基础光学课程和光学实验的重要内容,在传统光学技术和前沿科学研究中有重要的作用和应用。文章以分数阶涡旋光为研究对象,利用空间光调制器设计了基于叉形光栅的衍射效应产生分数阶涡旋光的实验,编写了分数阶叉形光栅的计算机程序,实验上产生和观测了分数阶涡旋光,分析了分数阶涡旋光的特点和强度分布。通过本实验,学生进一步加深了对衍射和光栅特性的理解,激发了对光学前沿研究和探索的兴趣,拓展了学生的专业知识,提升了对光学研究和光场调控的创新意识。
Diffraction and grating are important contents of basic optical courses and optical experiments,playing an important role and application in traditional optical technology and frontier scientific research.By using the spatial light modulator(SLM),the experiment of fractional optical vortex based on the diffraction effect of the fork grating is designed and carried out.The fork grating holograms are calculated by the computer program and loaded onto the SLM.The fractional optical vortex is generated and observed experimentally,and the characteristics and intensity distribution of which are also analyzed.Through this experiment,students have further deepened their understanding of diffraction and grating characteristics,stimulated their interest in frontier optical research and exploration,expanded their professional knowledge,and enhanced their innovative awareness on optical research and control of light field.
作者
祁义红
杨焓
王润兵
邢浩儒
王鹏
QI Yihong;YANG Han;WANG Runbing;XING Haoru;WANG Peng(School of Physics,East China University of Science and Technology,Shanghai 200237,China;School of Electronic Engineering and Intelligent Manufacturing,Anqing Normal University,Anqing 246133,China)
出处
《大学物理实验》
2023年第6期1-5,共5页
Physical Experiment of College
基金
国家自然科学基金(11874146)
华东理工大学大学生创新项目(X202210251297)
安徽省高校自然科学研究项目(KJ2019A0567)。
关键词
衍射
叉形光栅
涡旋光
轨道角动量
空间光调制器
diffraction
fork grating
vortex beam
orbital angular momentum
spatial light modulator
