相位型光栅的衍射及分光功能
收稿日期: 2021-03-05
修回日期: 2021-04-08
网络出版日期: 2021-11-15
基金资助
上海市大学生创新创业训练计划( S201910280007) ; 上海大学联合大作业项目“超快激光技术及其在通信和光谱检测领域的应用”资助
Diffraction and splitting function of phase grating
Received date: 2021-03-05
Revised date: 2021-04-08
Online published: 2021-11-15
邹意蕴, 林佳丽, 卢悦媛, 阎晓娜 . 相位型光栅的衍射及分光功能[J]. 大学物理, 2021 , 40(11) : 64 . DOI: 10.16854 / j.cnki.1000-0712.210104
a phase grating. Results show that the ±1 order diffraction of the phase grating can get the
maximum intensity and realize the splitting function，overcoming the problems in amplitude grating
where the 0 order diffraction has the maximum in- tensity but with no splitting function. The
diffraction efficiency of ±1 order diffraction with respect to the duty ratio and phase introduced
by the phase material are discussed. The method we provided here has implicit physical mean- ings
and is easy to adapt to other diffraction structure.
Key words： phase grating; diffraction; diffraction efficiency; splitting function
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