1) near-field diffraction
近场衍射
1.
Using the angular spectrum representation,the homogeneous and evanescent waves in near-field diffraction of a small aperture are examined.
用角谱法分析了微小孔近场衍射中的传播波和倏逝波 ,并对平面波圆孔衍射进行了数值计算 ,得到了一些新的结论 。
2) near field diffraction pattern
近场衍射图<光>
3) diffraction field
衍射场
1.
Diffraction field amplitude formula is the basis for quantitative solving diffraction field.
衍射场中场点振幅公式是定量求解衍射场的基础,本文利用格林定理,通过衍射屏的边界条件,推导出了光波衍射场中的振幅公式。
4) far field diffraction
远场衍射
1.
Based on the vector diffraction theory, the vector description of the far field diffraction at a plane aperture is derived, the comparison between the vector theory and the scalar theory is made, and the error and applicability of scalar diffraction theory is presented.
在矢量衍射理论的基础上 ,给出了偏振光、自然光照射的情况下 ,平面孔远场衍射的矢量描述 ,与标量衍射理论进行了比较 ,指出了标量衍射理论的误差及适用范围 ;对于孔径与波长相当的微小孔的大角度衍射 ,标量衍射理论存在一定的误差 ,而必须采用矢量衍射理论。
5) diffraction wave fidld
衍射波场
6) diffractive image field
衍射光场
1.
Then Fourier model method, mostly applied to study the diffractive properties of gratings is adopted to analyze the diffractive image field in thick film photo resist.
建立了描述厚层光刻胶内衍射光场形成过程的物理模型,并利用傅里叶模方法模拟计算和分析了其内部衍射光场分布。
补充资料：近场
见声场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条