journal6 ›› 2014, Vol. 35 ›› Issue (3): 44-48.DOI: 10.3969/j.issn.1007-2985.2014.03.010

• 物理与信息 • 上一篇    下一篇

光栅衍射中谱线缺级现象及其仿真

叶伏秋,彭善琼   

  1. (1.吉首大学物理与机电工程学院,湖南 吉首 416000;2.湖南第一师范学院,湖南 长沙 410205)
  • 出版日期:2014-05-25 发布日期:2014-07-05
  • 作者简介:叶伏秋(1967-),男,湖南吉首人,吉首大学物理与机电工程学院副教授,硕士,主要从事光学及信息光学研究.
  • 基金资助:

    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)

Spectral Line Absence about Grating Diffraction

 YE  Fu-Qiu, PENG  Shan-Qiong   

  1. (College of Physics,Mechanical and Electrical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2014-05-25 Published:2014-07-05

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.

关键词: 光栅衍射, 谱线缺级, 缺级条件

Abstract: With incident light of  different angles,the conditions for the phenomenon of spectral line absence 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.

Key words: grating diffraction, spectral line absence, conditions for absence

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