Utilizing convergent beam of large aperture can realize inversion of circular hole diffraction and circular disk diffraction.
利用这种光束可以对微小的衍射物体进行反演放大。
It is discorered that circular hole diffraction and circular disk diffraction pattern in large aperture convergent beam are different from those of general Fresnel diffraction.
实验中发现，经常使用的大孔径会聚光束的圆孔和圆屏衍射图样不同于一般的菲涅耳圆孔和圆屏衍射图样。
Based on the Fresnel diffraction of the round hole, the Fresnel diffraction oft he circular grating is discussed. The computer simulations of the diffraction in tensity distributions is given.
在圆孔的菲涅耳衍射的基础上，讨论环形光栅的菲涅耳衍射，并给出了计算机仿真结果。
Based on the Fresnel diffraction of the round hole, the Fresnel diffraction oft he circular grating is discussed. The computer simulations of the diffraction in tensity distributions is given.
在圆孔的菲涅耳衍射的基础上，讨论环形光栅的菲涅耳衍射，并给出了计算机仿真结果。
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