The best focal point is determined by the spherical aberration coefficient, and .
2
计算了完整的高斯光学参量及最重要的象差系数——球差系数和色差系数。
The Gaussian optical parameters and the most important aberration coefficients-spherical aberration coefficient and chromatic aberration coefficient are calculated.
3
束宽和远场发散角的相对误差随球差系数绝对值的增加和光束阶数的减小而增加;
The relative errors of the beam width and far-field divergence angle introduced by the spherical aberration increase with increasing spherical aberration coefficient and decreasing beam order.