摘要
本文通过严格理论推导证明所谓的无衍射光束其振幅和光强表达式是在忽略圆环宽度和透镜衍射的情况下得出的。指出振幅表达式为零阶贝塞尔函数的光束并非是没有衍射而是一种特殊的干涉光束。
In this paper, it is proved that expression of amplitude and intensity of 'nondiffraction beams' is derived when the width of the annulus slit and the diffraction of lens are neglected. And point out the beams whose expression is the zeroth order Bessel function is not nondiffraction beams, but it is a kind of special Fresnel diffraction beams or interference.
出处
《长春理工大学学报（自然科学版）》
2002年第2期19-21,共3页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金项目
