H离子团簇高次谐波平台展宽与团簇膨胀

张春艳

doi:10.7498/aps.72.20230534

摘要

通过数值求解强激光场与二维模型H离子团簇相互作用的含时薛定谔方程, 发现H离子团簇产生的高次谐波平台比单个H原子产生的高次谐波平台要宽. 建立了研究团簇产生高次谐波的经典模型, 研究发现经典模型计算结果与含时薛定谔方程结果能很好的对应, 同时指出高次谐波平台拓展的原因在于母核周围其他离子产生的库仑势场的作用, 并给出由此产生的离子间距改变对高次谐波截止能量的影响, 为观测团簇膨胀提供了一种可能途径.

关键词:

高次谐波 /
团簇 /
库仑势 /
膨胀

Abstract

By solving the time-dependent Schrödinger equation for the interaction of the intense laser field with the two-dimensional model of H ion cluster, it is found that the high-order harmonic plateau produced by H ion cluster is wider than that generated by a single H atom. The interaction between intense laser field and cluster is decomposed into three processes: internal ionization, classical motion under the action of external field and Coulomb field of the cluster ions, and recombination. After internal ionization, the particle is deemed classical and its motion follows Newton’s equation of motion. By studying the classical trajectory of electron and the variation of kinetic and potential energy with time, it is observed that during the electron’s returning, the additional kinetic energy is required as a result of the reduction in potential energy. Furthermore, the correlation between return energy and return time obtained from the classical model is in good agreement with that obtained from time-dependent Schrödinger equation. In this study, the cutoff energy of high-order harmonic generated by clusters is compared with that of a single atom, indicating that the extension of the platform of high-order harmonic by clusters is primarily caused by the Coulomb effect of other ions surrounding the parent nucleus. Additionally, the influence of ion spacing on the cutoff energy of high-order harmonic is also investigated, and a possible relationship between the cut-off energy of high harmonic and the cluster expansion is established.

Keywords:

作者及机构信息

张春艳^1,2

1.
陕西师范大学物理学与信息技术学院, 西安　710119

2.
湖北民族大学智能科学与工程学院, 恩施　445000

通信作者: 张春艳, 2012004@hbmzu.edu.cn

Authors and contacts

Zhang Chun-Yan^1,2

1.
College of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China

2.
School of Intelligence Science and Engineering, Hubei Minzu University, Enshi 445000, China

Corresponding author: Zhang Chun-Yan, 2012004@hbmzu.edu.cn

文章全文 : translate this paragraph

参考文献

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[3]	Yu S J, Li W Y, Li Y P, Chen Y J 2017 Phys. Rev. A 96 013432 Google Scholar
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[6]	Qiao Y, Huo Y Q, Jiang S C, Yang Y J, Chen J G 2023 Phys. Rev. B 107 075201 Google Scholar
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[16]	成春芝, 周效信, 李鹏程 2011 物理学报 60 202 Google Scholar Cheng C Z, Zhou X X, Li P C 2011 Acta Phys. Sin. 60 202 Google Scholar
[17]	Artemyev A N, Cederbaum L S , Demekhin P V 2017 Phys. Rev. A 95 033402
[18]	刘艳, 郭福明, 杨玉军 2019 物理学报 68 173202 Google Scholar Liu Y, Guo F M, Yang Y J 2019 Acta Phys. Sin. 68 173202 Google Scholar
[19]	Zhou X, Lock R, Wagner N, Li W, Kapteyn H C, Murnane M M 2009 Phys. Rev. Lett. 102 073902 Google Scholar
[20]	于术娟, 刘竹琴, 李雁鹏 2023 物理学报 72 043101 Google Scholar Yu S J, Liu Z Q, Li Y P 2023 Acta Phys. Sin. 72 043101 Google Scholar
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[30]	Aladi M, Márton I, Rácz P, Dombi P, Földes I B 2014 High Power Laser Sci. Eng. 2 E32 Google Scholar
[31]	Donnelly T D, Ditmire T, Neumann K, Perry M D, Falcone R W 1996 Phys. Rev. Lett. 76 2472 Google Scholar
[32]	Feng L, Liu H 2015 Phys. Plasmas 22 013107 Google Scholar
[33]	Numico R, Giulietti D, Giulietti A, Gizzi L A, Roso L 2000 J. Phys. B: At. Mol. Opt. Phys. 33 2605 Google Scholar
[34]	Vázquez de Aldana J R, Roso L 2001 J. Opt. Soc. Am. B 18 325 Google Scholar
[35]	Park H, Wang Z, Xiong H, Schoun S B, Xu J, Agostini P, DiMauro L F 2014 Phys. Rev. Lett. 113 263401 Google Scholar
[36]	Tao Y, Hagmeijer R, Bastiaens H M J, Goh S J, van der Slot P J M, Biedron S G, Milton S V, Boller K J 2017 New J. Phys. 19 083017 Google Scholar
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施引文献

图 1 二维模型团簇结构示意图　(a) H⁸⁺结构示意图; (b) H²⁴⁺结构示意图

Fig. 1. Schematic diagram of cluster structure of two-dimensional model: (a) Structure diagram of H⁸⁺; (b) structure diagram of H²⁴⁺.

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图 2 团簇的势能曲面　(a) H⁸⁺势能曲面; (b) H²⁴⁺势能曲面.

Fig. 2. Potential energy surface of cluster: (a) The potential energy surface of H⁸⁺; (b) the potential energy surface of H²⁴⁺.

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图 3 强激光场与H原子和H团簇相互作用产生的高次谐波(谐波阶表示谐波发射频率$ \omega $与激光基频$ {\omega _0} $的比值)　(a) I = 3×10¹⁴ W/cm², λ = 1200 nm; (b) I = 5×10¹⁴ W/cm², λ = 1400 nm

Fig. 3. High order harmonic generated from the interaction between intense laser field and H atom/H cluster: (a) I = 3×10¹⁴ W/cm² , λ = 1200 nm; (b) I = 5×10¹⁴ W/cm², λ = 1400 nm.

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图 4 (a), (c), (e) I = 3×10¹⁴ W/cm² , λ = 1200 nm的线偏振激光与H⁸⁺团簇相互作用时的电子动力学行为; (b), (d), (f) I = 5×10¹⁴ W/cm², λ = 1400 nm的线偏振激光与H²⁴⁺团簇相互作用时的电子动力学行为. (a), (b) 电子返回时间与返回能量的关系, 其中黑色实线表示动能、红色划线表示总能量、蓝色点线表示相应参数激光场与H原子相互作用时电子的返回动能与返回时间的关系; (c), (d) 电子的动能、势能及总能量随时间的变化, 其中黑色实线表示动能、红色划线表示势能、蓝色点线表示总能量; (e), (f)电子在X轴方向上位移随时间的变化

Fig. 4. Electron dynamic behavior of linearly polarized laser interacting with cluster: (a), (c), (e) For H⁸⁺ cluster illuminated by the laser with I = 3×10¹⁴ W/cm² , λ = 1200 nm; (b), (d), (f) for H²⁴⁺ cluster illuminated by the laser with I = 5×10¹⁴ W/cm², λ = 1400 nm. (a), (b) The relation between the return time and the return energy of the electron, where the black solid line represents the kinetic energy, the red dash line represents the total energy, and the blue dot line represents the kinetic energy from H atom; (c), (d) the energy change over time, where the black solid line represents kinetic energy, the red dash line represents potential energy, and the blue dot line represents total energy; (e), (f) displacement variations with time along X direction.

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图 5 图4(d)和图4(f)的部分放大图

Fig. 5. Partial enlargement of Fig. 4(d)and Fig. 4(f).

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图 6 I = 3×10¹⁴ W/cm², λ = 1200 nm的线偏振激光与H⁸⁺团簇相互作用过程中考虑(CCA)和不考虑库仑势(NCCA)影响的情况下电子的动力学行为　(a)电子返回时间与返回动能的关系; (b) 电子的动能随时间变化情况; (c)电子在X轴方向上位移随时间的变化

Fig. 6. Dynamical behavior of the electron with and without the influence of the Coulomb potential for H⁸⁺ cluster illuminated by the laser with I = 3×10¹⁴ W/cm², λ = 1200 nm: (a) The relationship between electron return time and return kinetic energy; (b) the variation of the kinetic energy of electrons over time; (c) the displacement of electrons in the X-axis direction over time.

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图 7 通过TDSE计算得到的高次谐波时频分布图(图中黑色实线表示考虑库仑作用时通过经典计算得到的返回动能与单个原子的电离能之和与返回时间的关系, 红色划线表示不考虑库仑作用时电子返回时间与返回动能的关系)　(a) I = 3×10¹⁴ W/cm², λ = 1200 nm的线偏振激光与H⁸⁺团簇相互作用; (b) I = 5×10¹⁴ W/cm², λ = 1400 nm的线偏振激光与H²⁴⁺团簇相互作用

Fig. 7. Time-frequency distribution of higher harmonics calculated by TDSE: (a) H⁸⁺ cluster illuminated by the laser with I = 3×10¹⁴ W/cm², λ = 1200 nm; (b) H²⁴⁺ cluster illuminated by the laser with I = 5×10¹⁴ W/cm², λ = 1400 nm. The black solid line represents the relationship between the sum of the ionization energy of a single atom and return kinetic energy obtained by classical calculation and the return time in the case of considering Coulomb effect, while the red dash line represents the relation between the return time and the return energy of the electron in the case of no considering Coulomb effect.

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图 8 (a) I = 3×10¹⁴ W/cm², λ = 1200 nm的线偏振激光与离子间距不同的H⁸⁺团簇相互作用时产生的高次谐波; (b)通过经典计算得到的返回动能与单个原子的电离能之和与返回时间的关系

Fig. 8. (a) High-order harmonics generate from the interaction between the linearly polarized laser and H^{8 +} cluster with different ion spacing, where I = 3×10¹⁴ W/cm², λ = 1200 nm; (b) the relationship between the sum of the ionization energy of a single atom and return kinetic energy obtained by classical calculation and the return time.

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[2]	祝晓松, 张庆斌, 兰鹏飞, 陆培祥 2016 物理学报 65 224207 Google Scholar Zhu X S, Zhang Q B, Lan P F, Lu P X 2016 Acta Phys. Sin. 65 224207 Google Scholar
[3]	Yu S J, Li W Y, Li Y P, Chen Y J 2017 Phys. Rev. A 96 013432 Google Scholar
[4]	Su N, Yu S J, Li W Y, Yang S P, Chen Y J 2018 Chin. Phys. B 27 054213 Google Scholar
[5]	Qiao Y, Huo Y Q, Liang H Q, Chen J G, Liu, W J, Yang Y J, Jiang S C 2022 Opt. Express 30 9971 Google Scholar
[6]	Qiao Y, Huo Y Q, Jiang S C, Yang Y J, Chen J G 2023 Phys. Rev. B 107 075201 Google Scholar
[7]	陶琛玉, 雷建廷, 余璇, 骆炎, 马新文, 张少锋 2023 物理学报 72 053202 Google Scholar Tao C Y, Lei J T, Yu X, Luo Y, Ma X W, Zhang S F 2023 Acta Phys. Sin. 72 053202 Google Scholar
[8]	Papadogiannis N A, Witzel B, Kalpouzos C, Charalambidis D 1999 Phys. Rev. Lett. 83 4289 Google Scholar
[9]	Hentschel M, Kienberger R, Spielmann C, Reider G A, Milosevic N, Brabec T, Corkum P, Heinzmann U, Drescher M, Krausz F 2001 Nature 414 509 Google Scholar
[10]	Goulielmakis E, Uiberacker M, Kienberger R, Baltuska A, Yakovlev V, Scrinzi A, Westerwalbesloh T, Kleineberg U, Heinzmann U, Drescher M, Krausz F 2004 Science 305 1267 Google Scholar
[11]	Sandberg R L, Paul A, Raymondson D A, Haedrich S, Gaudiosi D M, Holtsnider J, Tobey R I, Cohen O, Murnane M M, Kapteyn H C, Song C, Miao J, Liu Y, Salmassi F 2007 Phys. Rev. Lett. 99 098103 Google Scholar
[12]	Iii C D, Rundquist A R, Murnane M M, Kapteyn H C 1998 Science 280 1412 Google Scholar
[13]	Corkum P B 1993 Phys. Rev. Lett. 71 1994 Google Scholar
[14]	Yang Y J, Chen G, Chen J G, Zhu Q R 2004 Chin. Phys. Lett. 21 652 Google Scholar
[15]	Yang Y J, Chen J G, Chi F P, Zhu Q R, Zhang H X, Sun J Z 2007 Chin. Phys. Lett. 24 1537 Google Scholar
[16]	成春芝, 周效信, 李鹏程 2011 物理学报 60 202 Google Scholar Cheng C Z, Zhou X X, Li P C 2011 Acta Phys. Sin. 60 202 Google Scholar
[17]	Artemyev A N, Cederbaum L S , Demekhin P V 2017 Phys. Rev. A 95 033402
[18]	刘艳, 郭福明, 杨玉军 2019 物理学报 68 173202 Google Scholar Liu Y, Guo F M, Yang Y J 2019 Acta Phys. Sin. 68 173202 Google Scholar
[19]	Zhou X, Lock R, Wagner N, Li W, Kapteyn H C, Murnane M M 2009 Phys. Rev. Lett. 102 073902 Google Scholar
[20]	于术娟, 刘竹琴, 李雁鹏 2023 物理学报 72 043101 Google Scholar Yu S J, Liu Z Q, Li Y P 2023 Acta Phys. Sin. 72 043101 Google Scholar
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[22]	Vampa G, McDonald C R, Orlando G, Corkum P B, Brabec T 2015 Phys. Rev. B 91 064302 Google Scholar
[23]	Kruchinin S Yu, Krausz F, Yakovlev V S 2018 Rev. Mod. Phys. 90 021002 Google Scholar
[24]	Li L, Zhang Y F, Lan P F, Huang T F, Zhu X S, Zhai C Y, Yang K, He L X, Zhang Q B, Cao W, Lu P X 2021 Phys. Rev. Lett. 126 187401 Google Scholar
[25]	Qiao Y, Chen J Q, Huo Y Q, Liang H Q, Yu R X, Chen J G, Liu W J, Jiang S C, Yang Y J 2023 Phys. Rev. A 107 023523 Google Scholar
[26]	Véniard V, Taïeb R, Maquet A 1999 Phys. Rev. A 60 3952 Google Scholar
[27]	Vozzi C, Nisoli M, Caumes J P, Sansone G, Stagira S, Silvestri S D 2005 Appl. Phys. Lett. 86 111121 Google Scholar
[28]	Hu S X, Xu Z Z 1997 Appl. Phys. Lett. 71 2605 Google Scholar
[29]	Tisch J W G , Ditmire T, Fraser D J, Hay N, Mason M B , Springate E, Marangos J P, Hutchinson M H R 1997 J. Phys. B: At. Mol. Opt. Phys. 30 L709 Google Scholar
[30]	Aladi M, Márton I, Rácz P, Dombi P, Földes I B 2014 High Power Laser Sci. Eng. 2 E32 Google Scholar
[31]	Donnelly T D, Ditmire T, Neumann K, Perry M D, Falcone R W 1996 Phys. Rev. Lett. 76 2472 Google Scholar
[32]	Feng L, Liu H 2015 Phys. Plasmas 22 013107 Google Scholar
[33]	Numico R, Giulietti D, Giulietti A, Gizzi L A, Roso L 2000 J. Phys. B: At. Mol. Opt. Phys. 33 2605 Google Scholar
[34]	Vázquez de Aldana J R, Roso L 2001 J. Opt. Soc. Am. B 18 325 Google Scholar
[35]	Park H, Wang Z, Xiong H, Schoun S B, Xu J, Agostini P, DiMauro L F 2014 Phys. Rev. Lett. 113 263401 Google Scholar
[36]	Tao Y, Hagmeijer R, Bastiaens H M J, Goh S J, van der Slot P J M, Biedron S G, Milton S V, Boller K J 2017 New J. Phys. 19 083017 Google Scholar
[37]	Ruf H, Handschin C, Cireasa R, Thiré N, Ferré A, Petit S, Descamps D, Mével E, Constant E, Blanchet V, Fabre B, Mairesse Y 2013 Phys. Rev. Lett. 110 083902 Google Scholar
[38]	Moreno P, Plaja L, Roso L 1994 Europhys. Lett. 28 629 Google Scholar
[39]	Zaretsky D F, Korneev P, Becker W 2010 J. Phys. B: At. Mol. Opt. Phys. 43 105402 Google Scholar
[40]	Bodi B, Aladi M, Racz P, Foldes I B, Dombi P 2019 Opt. Express 27 26721 Google Scholar
[41]	Véniard V, Taïeb R, Maquet A 2001 Phys. Rev. A 65 013202 Google Scholar
[42]	Li N N, Zhai Z, Liu X S 2008 Chin. Phys. Lett. 25 2508 Google Scholar
[43]	Strelkov V, Saalmann U, Becker A, Rost J M 2011 Phys. Rev. Lett. 107 113901 Google Scholar
[44]	Feit M D, Jr Fleck J A, Steiger A 1982 J. Comput. Phys. 47 412 Google Scholar
[45]	Saalmann U, Rost J M 2008 Phys. Rev. Lett. 100 133006 Google Scholar

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H离子团簇高次谐波平台展宽与团簇膨胀