摘要
用干涉计算全息的方法制成一种能产生螺旋形波面A(x,y)exp[i(x,y)]=exn[iθ]的计算全息元件(CGH),并将其用来实现高斯光束的一阶贝塞尔变换。在理论上用计算机模拟此变换,求出变换后的光强分布曲线将其与实验结果进行了比较。还讨论了用该方法实现高斯光束的n阶贝塞尔变换的可能性。
In this paper, one kind of CGH element which can produce spiral wave suface A(x,y)exp[i(x,y)]=exp(i)) is made by using interference CGH method, and the first order Bessel transformation of axial symmetric Gaussian beam is obtained by this element. At the same time,this transformation is imitated by computer in theory. The calculating light intensity distribution of this transformation is gotten and campared with the experiment result. In this paper, n order Bessel transformation of axial symmetric Gaussian beam by this method is disgussed.
出处
《应用激光》
CSCD
北大核心
1994年第4期153-156,共4页
Applied Laser
关键词
高斯光束
贝塞尔变换
计算全息元件
computer generated hologram,gaussian beam,bessel transformation