A new method for long focal length measurement is presented, which is accomplished by obtaining the Angle of moire stripe formed by Talbot effect of Ronchi grating.
提出通过对龙基光栅的塔尔博特效应所产生的莫尔条纹角度的计量来测量长焦距的方法。
A novel technique to produce the self-imaging Talbot effect, nearly non-diffracting bottle beams which were interfered by the two Bessel beams generated from the axicons was proposed.
提出一种由轴棱锥产生的贝塞尔光干涉整形得到具有自成像塔尔博特效应的近似无衍射局域空心光束的新方法。
A self-imaging phenomenon whose nature is the same as Talbot effect has been observed using simple instruments, and the period of object with periodic transmittance has also been measured easily.
我们通过一个极为简单的装置看到与泰保效应本质相同的自成像现象，并且发现可利用它十分简单地测量具有周期透过率函数物体的周期。
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