贝塞尔光束的特性及参量的影响

Properties of Apertured Bessel Beams

摘要:

本文利用数值计算研究了Bessel光束的传播特性及参量对其的影响，发现Bessel光束的最大无 射距离与光矢量横向分量系数kr成 反比，而与光阑半径R成正比。最后，得到了一个计算最大无衍射距离的经验公式。

Abstract:

The propagation properties of Bessel beams are numerically calculated.And then we calculated the effect of parameters both k r and R.Mainly find that the non diffracting distance is in inverse proportion to the parameter k r and nearly in direct proportion to the R.Finally,we get a formula about the non diffracting distance.