原子与分子物理学报2013，Vol.30Issue(3)：427-430,4.DOI:10.3969/j.issn.1000-0364.2013.03.014
空气中YAG激光诱导Cu等离子体空间特性的研究
The research of YAG laser-induced Cu plasma spectra on space characteristic in air
摘要
Abstract
The plasma spectra have been measured with a pulsed Nd:YAG laser which induces the plasma from a metal copper target in air.The space-resolved spectra of the plasma are also obtained.By varying the space distance,the spectral structures,electron temperatures and electron intensities in various space distances from the target are studied.The plasma spectrum characteristics and mechanism of production are discussed.The results show that the spectral structure,spectral intensity,plasma electron temperature and density are closely related with the spatial variation.The maximum value of characteristic spectrum strength appears at 0.75～1.0 mm space position before the target,here the Cu line relative strength is strongest.At 1.25 mm space position the electronic temperature is lower,but the electron density instead increases.This phenomenon can be interpreted by the cascade effect.关键词
等离子体/发射光谱/电子温度/电子密度Key words
plasma/ emission spectra/ electron temperature/ electron intensity分类
数理科学引用本文复制引用
乔红贞,常旭,舒方杰..空气中YAG激光诱导Cu等离子体空间特性的研究[J].原子与分子物理学报,2013,30(3):427-430,4.基金项目
国家自然科学基金青年科学基金(11204169) （11204169）
国家自然科学基金理论物理专项(11247289) （11247289）
河南省教育厅科学技术研究重点项目(12B140012,13B140191) （12B140012,13B140191）
商丘师范学院青年科研基金 （）
(2011QN13) （2011QN13）
