| 激光烧蚀石墨/硝酸钾的发射光谱特性研究 |
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| 引用本文： | 王惠娥,沈瑞琪,叶迎华,吴立志,秦钊.激光烧蚀石墨/硝酸钾的发射光谱特性研究[J].激光与光电子学进展,2012(8):167-170. |
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| 作者姓名： | 王惠娥 沈瑞琪 叶迎华 吴立志 秦钊 |
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| 作者单位： | 南京理工大学化工学院;安徽理工大学化工学院 |
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| 摘 要： | 为了研究激光点火过程中的化学反应历程,采用光谱分析方法分析研究了1064nm脉冲激光作用下石墨/硝酸钾烟火药剂的激光烧蚀发射光谱。测试分析表明激光作用过程中烧蚀的光谱具有线状光谱的特性,波长主要分布在300～600nm之间。光谱谱线揭示了烧蚀解离的谱线组成主要有N、O、C、K的原子光谱和离子光谱,在能量密度为46.7J/cm2的激光作用下,NⅡ385.61nm谱线最强,OⅡ441.70nm谱线最弱。烧蚀产物在气相中发生燃烧反应。
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| 关 键 词： | 光谱学 激光点火 光谱分析 发射光谱 激光烧蚀 石墨/硝酸钾 |
Study on Emission Spectroscopy Characteristics of Laser Ablation Graphite/Potassium Nitrate |
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| Wang Huie,Shen Ruiqi,Ye Yinghua,Wu Lizhi,Qin Zhao.Study on Emission Spectroscopy Characteristics of Laser Ablation Graphite/Potassium Nitrate[J].Laser & Optoelectronics Progress,2012(8):167-170. |
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| Authors: | Wang Huie Shen Ruiqi Ye Yinghua Wu Lizhi Qin Zhao |
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| Affiliation: | 1School of Chemical Engineering,Nanjing University of Science and Technology, Nanjing,Jiangsu 210094,China 2School of Chemical Engineering,Anhui University of Science and Technology, Huainan,Anhui 232001,China |
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| Abstract: | Laser ablation emission spectra of graphite/potassium nitrate under pulse laser irradiation with wavelength of 1064 nm are analyzed to investigate the chemical reaction processes during laser ignition.Testing results indicate that ablation spectra possess the characteristics of line spectra,and wavelengths of spectra range mainly from 300 to 600 nm.Ablation spectra mainly consist of atomic spectrum and ionic spectrum of N,O,C and K.When the laser energy density is 46.7 J/cm2,NⅡ385.61 nm spectrum is the strongest while OⅡ441.70 nm spectrum is the weakest.The ablation products combusted in gas phase. |
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| Keywords: | laser ignition spectral analysis emission spectroscopy laser ablation graphite/potassium nitrate |
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