【摘要】 菲涅耳棱镜干涉是大学物理课程光的干涉中一个经典而重要的实验,菲涅耳棱镜干涉的物理思想与实验方法至今仍然值得我们学习与借鉴。本文利用菲涅耳棱镜的干涉原理并与柱面透镜、非线性晶体、CCD相结合搭建了用于测量飞秒激光脉冲的自相关装置,这种自相关装置结构简单、方便,成本极低;分析了这种基于菲涅耳棱镜自相关装置的工作原理,并进行了实验测量。更多还原

【Abstract】 Fresnel biprism interference is a classical and important experiment in optics.The physics idea and experimental technique of Fresnel prism interference are still worth learning and using for us.An autocorrelation device for measuring femtosecond laser pulses has been set up by using Fresnel prism and combining with cylindrical lens,nonlinear crystal and CCD camera.The working principle of the autocorrelator is analyzed.Experiments on femtosecond laser pulse measurement are conducted.更多还原