摘要
用广义惠更斯－菲涅耳衍射积分对有振幅调制和位相畸变的高功率激光束通过有中心遮拦透镜的聚焦特性作了详细研究，并对焦面处光束的可聚焦性进行了讨论。数值计算结果表明，功率（能量）集中度与光阑的遮拦比、光束截断参数以及振幅调制和位要畸变参数等有关。
By using the generalized Huygens Fresnel diffraction integral, the focusing of high power laser beams with amplitude modulations and phase fluctuations passing a lens with a central obstruction aperture has been studied in detail. The beam focusability in the focal plane has been discussed. Numerical calculation results show the dependence of the power (energy) focusability on the obstruction ratio, truncation parameter, the amplitude modulation and phase fluctuation parameters.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1997年第12期1660-1664,共5页
Acta Optica Sinica
基金
国家高技术青年基金
强辐射重点实验室资助
关键词
位相畸变
高功率
激光
聚焦
遮拉比
遮拦透镜
high power laser with amplitude modualtions and phase fluctuations, focusing properties, obstruction ratio, power (energy) focusability.
