半波带法在分析光栅衍射中的应用  

Application of half-wave zone method in analyzing grating diffraction

作　　者：吴颖[1] 孙丽媛[1] 徐恩生[1] 

机构地区：[1]沈阳航空工业学院理学系,辽宁沈阳110034

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第3期456-458,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省教育厅科技基金资助项目(202023086)

摘　　要：在半波带法分析光栅衍射和半波带法分析单缝衍射二者之间对比的基础上,提出了用半波带法分析光栅衍射是可采用的简便方法。半波带法是处理子波相干叠加的一种有效途径,惠更斯-菲涅耳原理要求对波面作无限分割,而半波带法则用较粗糙的分割来代替。虽然半波带法不够精细,但是可以较为简明地得出衍射图样的某些特征。To make students have a clearer understanding of the stripe distributing of grating diffraction within limited time, this essay shows that half-wave zone method on analyzing grating diffraction is feasible and simple compared with single-slit diffraction. Half-wave zone method is a simple way to deal with the interference of wavelet. Huygens-Fresnel principle demands an infinite division of the wave front, while half-wave zone method uses comparatively rough division instead. Although this method is lack of accuracy, it can be comparatively easy to obtain some characteristics of the stripe distributing of diffraction.

关 键 词：半波带 光栅衍射 单缝衍射 

分 类 号：O436.1[机械工程—光学工程]