大气与环境光学学报2025，Vol.20Issue(3)：299-311,13.DOI:10.3969/j.issn.1673-6141.2025.03.005
全固态OPO激光雷达及其对大气金属层的探测研究
Research on atmospheric metal layers detection technology by all-solid-state optical parametric oscillator lidar
摘要
Abstract
This paper introduces an all-solid-state lidar system based on optical parametric oscillator(OPO)and optical parametric amplification(OPA)technology,and its application in the detection of atmospheric metal components.The lidar system is distinguished by its high output energy(up to 100 mJ),narrow linewidth(<200 MHz),and the excellent uniformity of laser spot,which significantly enhances its sensitivity for detecting metal ions in the atmosphere,and a detection sensitivity of 0.02 cm-3 for metal ions can be achieved at 1 km in 1 hour integration time.In the field experiments conducted in Beijing,Mohe,and other sites,the overnight evolution data of calcium atoms and ions were successfully obtained using the lidar system,and calcium ion layers extending up to 300 km in altitude were detected.These results indicate that,compared with traditional dye laser technology,the all-solid-state lidar has the advantages of high sensitivity and high resolution,and a series of new phenomena detected are expected to promote the discovery of new processes and mechanisms in space physics.In addition,this paper also discusses the prospective applications of this technology in advancing lidar detection capabilities.关键词
大气金属层/激光雷达/光参量振荡及放大技术/钙原子和钙离子层Key words
atmospheric metal layers/lidar/optical parametric oscillation and optical parametric amplification technologies/calcium and calcium ion layer分类
天文与地球科学引用本文复制引用
杜丽芳,林兆祥,荀宇畅,陈志善,杨国韬,肖春雷,郑浩然,程学武,郭继鑫,吴方,李发泉,焦菁,房硕..全固态OPO激光雷达及其对大气金属层的探测研究[J].大气与环境光学学报,2025,20(3):299-311,13.基金项目
国家重点研发计划(2022YFC2807201),国家自然科学基金面上项目(42374204),子午工程大科学装置计划 （2022YFC2807201）
