| 借助光栅测谱中高级次谱判断强激光场作用时的有效功率密度 |
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| 引用本文： | 陈建新,王骐,夏元钦.借助光栅测谱中高级次谱判断强激光场作用时的有效功率密度[J].中国激光,2003,30(3):255-258. |
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| 作者姓名： | 陈建新 王骐 夏元钦 |
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| 作者单位： | 哈尔滨工业大学光电子技术研究所,可调谐激光技术国家级重点实验室,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家 8 6 3高技术 (86 3 80 4 7 1 0 )激光技术主题资助项目 |
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| 摘 要： | 借助在X光波段高次谐波辐射谱测量过程中 ,根据单色仪光栅分光的作用 ,产生的 2 3级次 (34 5 6nm)谐波谱的二级次谱 (6 9 1 3nm)的出现与否 ,判断了实验获得高次谐波谱的截止波长 ;从而根据高次谐波的理论 ,判断了强激光场与物质相互作用时 ,激励产生X光谱的有效功率密度为 1 0 0 7× 1 0 1 4 W /cm2 ,此时获得最大光子能量为32 81 7eV。它的准确判断和测量是研究实验获得谱线的来源和强度的基础数据
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| 关 键 词： | 激光物理 光栅分光 高级次谱 测试系统 |
| 收稿时间： | 2001/11/5 |
Experimental Method of Estimating Effective Laser Intensity by Use of the High-order Spectrum |
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| CHEN Jian xin,WANG Qi,XIA Yuan qin.Experimental Method of Estimating Effective Laser Intensity by Use of the High-order Spectrum[J].Chinese Journal of Lasers,2003,30(3):255-258. |
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| Authors: | CHEN Jian xin WANG Qi XIA Yuan qin |
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| Abstract: | In this paper, based on the dispersion of grating in monochromator, the cutoff wavelength of getting harmonics is judged on the appearance of 2 nd spectrum (wavelength of 69.13 nm) of the 23 rd high order harmonic (wavelength of 34.56 nm); Accordingly, the efficiency laser intensity of producing X spectrum is estimated in virtue of the theory of high harmonic which is 1.007×10 14 W/cm 2 and the most photon energy is 32.817 eV, which are the basic data of studying the origin and intensity of the spectrum in the experiment. |
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| Keywords: | laser physics disparsion of the grating high order spectrum testing system |
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