Extracting generalized multiphoton ionization cross-sections from nonperturbative time-dependent calculations: An application in positronium

L. B. Madsen; L. A. A. Nikolopoulos; P. Lambropoulos

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Extracting generalized multiphoton ionization cross-sections from nonperturbative time-dependent calculations: An application in positronium

机译：从非扰动时间相关计算中提取广义多光子电离截面：在正电子中的应用

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摘要

Ab initio time-dependent (TD) calculations of the behavior of positronium (Ps) under strong subpicosecond laser pulses are presented. The results are compared with results in H through scaling. It is found that a substantial amount of the population can be found in excited states after the pulse. In the perturbative regime, generalized multiphoton ionization cross-sections are extracted from the results of the time-dependent calculations. The generalized cross-sections are used to predict the response of Ps to nanosecond laser pulses at wavelengths of current experimental interest. Beyond the application to Ps, the generality of the method for extracting generalized cross-sections from TD nonperturbative calculations is discussed.

机译：提出了从头开始的时间依赖性（TD）计算在亚皮秒强脉冲下的行为（Ps）。通过缩放将结果与H中的结果进行比较。发现在脉冲之后可以在激发态中找到大量的人口。在微扰状态下，从与时间有关的计算结果中提取出广义的多光子电离截面。广义的横截面用于预测当前实验感兴趣的波长下Ps对纳秒激光脉冲的响应。除了应用于Ps之外，还讨论了从TD非扰动计算中提取广义截面的方法的一般性。

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《The European physical journal, D. Atomic, molecular, and optical physics》 |2000年第1期|共13页
作者
L. B. Madsen; L. A. A. Nikolopoulos; P. Lambropoulos;
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正文语种 eng
中图分类分子物理学、原子物理学;
关键词
32.80.Rm multiphoton ionization and excitation to highly excited states (e.g.; Rydberg states); 32.80.-t photon interactions with atoms; 36.10.Dr positronium; muonium; muonic atoms and molecules;

机译：32.80.Rm多光子电离并激发到高激发态（例如里德堡态）;32.80.-t光子与原子的相互作用;36.10。正电子;on原子和分子;

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1. Extracting generalized multiphoton ionization cross-sections from nonperturbative time-dependent calculations: An application in positronium [J] . L. B. Madsen, L. A. A. Nikolopoulos, P. Lambropoulos The European physical journal, D. Atomic, molecular, and optical physics . 2000,第1期

机译：从非扰动时间相关计算中提取广义多光子电离截面：在正电子中的应用
2. Time-dependent R-matrix calculations for multiphoton ionization of argon atoms in strong laserpulses [J] . Xiaoxu Guan, C. J. Noble, O. Zatsarinny, Physical Review, A. Atomic, molecular, and optical physics . 2008,第5aPta2期

机译：强激光脉冲中氩原子的多光子电离的时变R矩阵计算
3. Time-dependent R-matrix calculations for multiphoton ionization of argon atoms in strong laserpulses [J] . Xiaoxu Guan, C. J. Noble, O. Zatsarinny, Physical Review, A. Atomic, molecular, and optical physics . 2008,第5aPta2期

机译：强激光脉冲中氩原子的多光子电离的时变R矩阵计算
4. Control of multiphoton ionization processes in aligned I_2 molecules by optimizing time-dependent polarization of femtosecond pulses [C] . Takayuki Suzuki, Shinichirou Minemoto, Tsuneto Kanai, International Conference on Ultrafast Phenomena . 2005

机译：通过优化飞秒脉冲的时间依赖性偏振来控制对准I_2分子的多选电离过程
5. Development and application of two-step laser desorption/multiphoton ionization mass spectrometry [D] . Hahn, Jong Hoon 1989

机译：两步激光解吸/多光子电离质谱的开发与应用
6. Encapsulation of grape seed extract in polylactide microcapsules for sustained bioactivity and time-dependent release in dental material applications [O] . Mostafa Yourdkhani, Ariene Arcas Leme-Kraus, Berdan Aydin, -1

机译：葡萄籽提取物在聚丙交酯微胶囊中的包封在牙科材料应用中具有持续的生物活性和时间依赖性释放
7. Multiphoton above-threshold detachment ofLi−:Exterior-complex-scaling– generalized-pseudospectral method for calculations of complex-quasienergy resonances in Floquet formulation of time-dependent density-functional theory [O] . Dmitry A. Telnov, Shih-I Chu 2002

机译：多光子上面的阈值脱离，包括外部 - 复杂扩展 - 广义 - 伪谱法，用于计算时间依赖性密度函数理论的浮子式复合 - QuasieNergy共振的计算
8. Nonperturbative Analysis of the Two-Level Atom: Applications to Multiphoton Excitation [R] . Duvall, R. E. , Valeo, E. J. , Oberman, C. R. 1987

机译：二能级原子的非微扰分析：多光子激发的应用

Extracting generalized multiphoton ionization cross-sections from nonperturbative time-dependent calculations: An application in positronium

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