FILAMENTATION LENGTH FOR FEMTOSECOND LASER RADIATION FOCUSED BY CONIC AND PARABOLIC LENSES

摘要

Special features of filamentation of femtosecond laser radiation focused by parabolic lens and axicon are considered. Based on numerical solution of the nonstationary Schr?dinger equation, simple expressions are derived for calculation of the filamentation length for laser radiation focused by the parabolic lens and axicon depending on the radiation power and focal lengths.