Measuring the velocity of ultrasonic wave in liquid based on Talbot effect;
基于塔尔博特效应测量液体中的声速
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 new method for long focal length measurement is presented, which is accomplished by obtaining the angle of moiré 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。