强激光与粒子束2025，Vol.37Issue(7)：13-21,9.DOI:10.11884/HPLPB202537.250002
超快超强激光系统中消色差透镜组装调误差引入的"空-时"耦合畸变分析
Analysis of spatio-temporal coupling distortion introduced by assembly and alignment errors of achromatic lens in ultrafast and ultraintense laser systems
摘要
Abstract
In ultrafast high-power laser systems,achromatic lens groups are typically used to replace standard beam expanders to eliminate spatio-temporal coupling(STC)distortions caused by chromatic aberrations.However,alignment errors in these achromatic lens groups can introduce new STC distortions,thereby reducing far-field power density and compromising the desired correction.This paper quantitatively analyzes the STC distortions induced by three types of alignment errors using a broad-spectrum pulse laser transmission model and a thick lens equivalent phase screen model.The impact of these errors on far-field focusing power density is evaluated,and permissible error ranges for each type are established.关键词
超快激光/消色差透镜/"空-时"耦合特性/装调误差/峰值功率密度Key words
ultrafast lasers/achromatic lens/spatio-temporal coupling/alignment error/peak power density分类
数理科学引用本文复制引用
许浩天,王逍,李伟,孙斌,王冀敏,卫鹏宇,母杰,李纲,左言磊..超快超强激光系统中消色差透镜组装调误差引入的"空-时"耦合畸变分析[J].强激光与粒子束,2025,37(7):13-21,9.基金项目
国家重点研发计划项目(2022YFB3606305) （2022YFB3606305）
国防基础科研计划项目(JCKYS2022212804) （JCKYS2022212804）
