对狭缝远大于波长的衍射条纹研究

A Study of the Diffraction Stripes with Slits Greater than Wave Length

观察狭缝衍射条纹并记录下来,采用菲涅耳半波带和矢量作图法通过讨论菲涅耳直边衍射中光的强度分布,进而推导出宽1～2cm狭缝衍射条纹的原理.结果表明:宽度远大于光波长的狭缝衍射现象实质上是两个菲涅耳直边衍射的叠加.

Observe crack in diffraction fringe and the record down, use Fresnel half wave band and the vector through discusses in the Fresnel diffraction the light intensity, then promotes the crack in a door diffraction fringe the principle, draws the conclusion： In the crack in a door diffraction essence is two Fresnel diffraction superimposition.