摘要
理论推导了入射光以不同角度入射时的谱线缺级现象产生机理和被观察到的条件,数值模拟方法验证了垂直入射下的谱线缺级现象产生的条件,比较了入射光以不同角度入射时的谱线缺级现象.实验结果表明,垂直入射与斜入射时谱线缺级条纹均满足j=kd/b,其区别在于相同实验条件下能观察到的缺级条纹的范围存在一定的差异.
with incident light of different angles, the conditions for the phenomenon of spectral line ab- sence occuring and being observed are theoretically deducted. By the means of numerical simulation, the condition for the phenomenon of spectral line absence under the vertical incidence is verified. And with incident light of with different angles the spectral line absence is compared. The results show that the phenomenon meets j =kd/b. The difference between the two incidences is that the observed range of the spectral line＇s absence striation is different to some extent under the same experimental conditions.
出处
《吉首大学学报（自然科学版）》
CAS
2014年第3期44-48,共5页
Journal of Jishou University(Natural Sciences Edition)
基金
湖南省自然科学基金资助项目(11JJ6002
11JJ6060)
湖南省教育厅科学研究项目(10A100
12C0314)
关键词
光栅衍射
谱线缺级
缺级条件
grating diffraction
spectral line absence
conditions for absence
