In the paper,the power in the bucket(PIB), β and η parameters are chosen as criteria to characterize the laser beam quality in the far field,then the beam quality of super Gaussian beams passing through a spherically aberrated lens with an annular rectangular aperture is studied.
以桶中功率 (PIB)、β参数和 η参数为激光光束质量评价参数 ,对超高斯光束经有方环光阑球差透镜后的光束质量作了详细的研究。
The power in the bucket (PIB) is extended to the nonparaxial regime,where the intensity is replaced by the z component of the time-averaged Poynting vector,and used to characterize the beam .
将桶中功率(PIB)概念推广到非傍轴范畴,用以描述矢量非傍轴光束的远场光束质量,其中光强用时间平均坡印廷矢量的z分量取代。
Meanwhile, the power in the bucket (PIB) at the geometrical and real focal planes of Gaussian beams with spherical aberrations is also studied.
同时还研究有球差的高斯光束在透镜几何焦面和实际焦面上的桶中功率 (PIB)。