贝塞尔光束的特性及参量的影响(英文)

Properties of Apertured Bessel Beams

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光束的最大无衍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 。

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