联合变换相关器的零级衍射光斑会影响相关峰探测。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
介绍了用锥镜法和取高级衍射光斑法来实现空心光阱的实验方法。
The experimental method used to form doughnut laser trap through axicons and by extracting high order diffractive light component is introduced.
当激光束投射在浮雕光栅上，透过光栅的衍射光斑就反映了浮雕光栅的表面信息。
When the laser beams project in the relief gratings, its transmission diffraction patterns represent the surface informations of the relief gratings.
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