| 乙烯分子在激光场中的多光子电离及高次谐波的产生 |
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| 引用本文： | 王志萍,张丰收,王菁.乙烯分子在激光场中的多光子电离及高次谐波的产生[J].四川激光,2012(1):25-27. |
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| 作者姓名： | 王志萍 张丰收 王菁 |
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| 作者单位： | [1]江南大学理学院,无锡214122 [2]北京师范大学核科学与技术学院,北京100875 |
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| 基金项目： | 江南大学科研启动基金; 中央高校基本科研业务费专项资金资助（JUSRP10911） |
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| 摘 要： | 本文运用含时密度泛函理论和局域密度近似方法,分别研究了乙烯分子在单色激光场、双色激光场中电离和高次谐波的产生。计算结果表明,在单色激光场中,乙烯分子的高次谐波谱呈现出明显的平台区和奇次谐波加强的特征：在双色激光场中,乙烯分子的电离增强而出现高电荷态几率,并伴有偶次谐波的出现。
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| 关 键 词： | 含时局域密度近似：离化几率 高次谐波 |
High-order harmonic generation and multi-photon ionization of ethylene in laser fields |
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| WANG Zhi-ping,ZHANG Feng-shou,WANG Jing.High-order harmonic generation and multi-photon ionization of ethylene in laser fields[J].Laser Journal,2012(1):25-27. |
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| Authors: | WANG Zhi-ping ZHANG Feng-shou WANG Jing |
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| Affiliation: | 1.School of Science,Jiangnan University,Wuxi 214122,China;2.College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | Applying the time dependent local density approximation（TDLDA）,the high-order harmonic generation（HHG）spectra and the ionization probabilities of ethylene subject to the one-colour and two-colour laser field are explored.It is found that HHG spectra of ethylent exhibits the plateau obviously from the fifth order to the ninth order harmonic and the odd harmonics are strengthed in the one-colour laser field.Furthermore,the ionization of ethylene is enhanced in the two-colour laser field resulting the appearance of the high charge state and the even harmonics. |
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| Keywords: | TDLDA ionization probabilities high-order harmonic spectra |
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