Optical tomography of thermal blooming in high energy laser beam

Computer tomography is widely used in density measurement, and this method is also introduced into analysis of airflow as optical tomography. The airflow characteristic of thermal blooming in high energy laser(HEL) beam and the disadvantage of traditional method are discussed. The optical tomography of thermal blooming is presented in this paper, and it can measure HEL inner beam thermal blooming nonintrusively. By the numerical simulation of tomographic optical HEL beam thermal blooming, the feasibility and dependability of this approach are tested.