光栅缺级附近的两弱峰  

Re-discussion on the missing order of multi-slit's and grating's diffracted spectra

作　　者：彭世林[1] 

机构地区：[1]庆阳师范高等专科学校物理系,甘肃西峰745000

出　　处：《大学物理》2002年第11期27-29,共3页College Physics

摘　　要：从多缝及光栅衍射强度分布出发 ,指出缺级时 ,谱线位置附近的光强并非为零 ,而是出现两“弱峰” ,并通过数值计算及计算机模拟技术 ,分析讨论了“弱峰”产生的原因及强度、位置的分布 .Beginning with the distribution of multi slit's and grating's light intensity,it is pointed out that in the position of missing order,the light intensity does not equal zero,but two new 'weak spectra' appear. And is also analysed and discussed why the 'weak spectra' are produced, by the numerical calculation and technology of computer simulation.

关 键 词：光栅缺级 弱峰 光栅衍射 计算机模拟 抽样舍取法 多缝衍射 数值计算 

分 类 号：O436.1[机械工程—光学工程]