... diffraction broadening 衍射增宽 diffraction by aperture 孔径衍射 diffraction cone 衍射锥 ...
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The optimal IDT aperture and the aperture ratio are determined by calculating diffraction response.
最佳的IDT孔径和孔径比值由计算滤波器衍射频响确定。
For the diffraction of a small aperture, the scalar diffraction has been modified by the vector diffraction theory.
在微小孔衍射的情况下，还讨论了矢量衍射理论对标量衍射理论相关处理的修正。
By this way we can design high diffraction efficiency, as well as lager numerical aperture diffractive lens under current machine fabrication condition.
该方法在现有衍射透镜加工设备分辨率条件下，可提高衍射透镜的衍射效率，增大衍射透镜的数值孔径。
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