title: Computer modeling and experimental study of non-chain pulsed electric-discharge DF laser.
abstract: Computer simulation and experimental study of a pulsed electrical-discharge DF laser pumped by the SF(6)-D(2) non-chain reaction are presented. The computer model encompassing 28 reactions is based on laser rate equations theory, and applied to approximately describe the chemical processes of non-chain DF laser. A comprehensive study of the dependence of number density on time for all particles in the gain area is conducted by numerical calculation adopting Runge-Kutta method. The output performance of non-chain pulsed DF laser as a function of the output mirror reflectivity and the mixture ratio are analyzed. The calculation results are compared with experimental data, showing good agreement with each other. Both the theoretical analysis and experimental results present that the laser output performance can be improved by optimizing the mixture ratio and output mirror reflectivity. The optimum values of mixture ratio and output mirror reflectivity are respectively 10:1 and 30%. The single pulse energy of 4.95J, pulse duration of 148.8ns and peak power of 33.27 MW are achieved under the optimum conditions.
authors.affiliation: State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Ruan
authors.forename: Jijiang
authors.initials: J
authors.lastname: Xie
authors.forename: Laiming
authors.initials: L
authors.lastname: Zhang
authors.forename: Jin
authors.initials: J
authors.lastname: Guo
authors.forename: Jingjiang
authors.initials: J
authors.lastname: Xie
authors.forename: Guilong
authors.initials: G
authors.lastname: Yang
authors.forename: Dianjun
authors.initials: D
authors.lastname: Li
authors.forename: Qikun
authors.initials: Q
authors.lastname: Pan
authors.forename: Gaijuan
authors.initials: G
authors.lastname: Tan
authors.forename: Fanjiang
authors.initials: F
authors.lastname: Meng
authors.forename: Shiming
authors.initials: S
authors.lastname: Li
mesh_terms: D003198:Computer Simulation; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008962:Models, Theoretical