摘要
利用两束平行光相干叠加制作全息光栅具有成本低、易实现的优点。平息光栅的制作作为设计件实验具有灵活、多样性,值得推广。本文根据两束相干平行光产生机理,将全息光栅制作分为分振幅法和分波面法两大类型。在分析比较常见的7种不同光路的基础上,又提出了菲涅尔双面镜、杨氏双缝和洛埃镜法三种光路。这些结果对学生实验和实际全息光栅制造具有指导意义。
The method of overlapping coherent parallel light to form holographic grating has the merit of low cost and simplicity in realization. As designing experiment,formlng holographic grating is worthy of extensive promotion thanks to its flexibility and variety. Based on the forming mechanism of two beams of coherent parallel light, this paper diviides production of holographic grating into two groups： detaching amplitude methods and detaching wavefront methods. On analyzing and comparing the 7 different casual laser paths, tiffs paper also bring out 3 new laser paths,which are Fresnel,Young＇s double slit and,Lloyd＇s mirror method ,The results are meaningful m guiding the students＇e, experiments and promoting production of holographic grating.
出处
《大学物理实验》
2008年第1期20-22,共3页
Physical Experiment of College
关键词
全息光栅
光栅常数
光路
分振幅法
分波面法
holographic grating
grating constant
laser path
detaching amplitude method
detaching wavefront method
