Laser intensity inversion method based on heat conduction inverse problem

The invention provides a laser intensity inversion method based on a heat conduction inverse problem, belongs to the technical field of laser, and relates to a non-direct measurement method for high-energy laser intensity distribution. The invention aims to solve the technical problem of providing the non-direct measurement method for the high-energy laser intensity distribution. The method comprises the following steps that: on the basis of a material heat conduction model under laser irradiation, converting a measurement problem of laser intensity distribution into a typical thermodynamics inverse problem, utilizing a conjugate gradient algorithm to carry out numerical value solving on the inverse problem, and finally, obtaining the spatial and temporal distribution of laser intensity. The method is still suitable for the non-high-energy laser intensity distribution measurement with an obvious heat effect. 本发明提供一种基于热传导逆问题的激光强度反演方法，激光技术领域，涉及指高能激光强度分布的非直接测量方法。本发明解决的技术问题是提供一种高能激光强度分布的非直接测量方法。该方法基于激光辐照下的材料热传导模型