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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45781完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 朱時宜(Shih-I Chu) | |
| dc.contributor.author | Jhih-An You | en |
| dc.contributor.author | 游至安 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:46:02Z | - |
| dc.date.available | 2011-08-06 | |
| dc.date.copyright | 2010-08-06 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-08-05 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45781 | - |
| dc.description.abstract | 本文提出了新的數值方法，用無自我交互作用的時變孔恩-沈方程
式來處理非微擾的多光子游離、超閾值電離。因為在此我們不需要處 理離核很遠處的波函數的時間演化，所以這個方法不但精確也很省 時。這方法是建立在將波函數從實驗室座標轉換到 Kramers-Henneberger 框架上，我們把這方法應用到惰性氣體的超閾值 電離。在此我們計算電子的能譜跟其角度分布，結果顯示了電子頻譜 與雷射強度、頻率、載波包相位的相依性，並跟實驗作比較。 | zh_TW |
| dc.description.abstract | We present a new method for the the numerical solution of the self-interaction-free
time-dependent Kohn-Sham equation for the nonperturbative treatment of multiphoton ionization (MPI), above-threshold ionization (ATI), and electron energy and angular distribution after ATI. The method is accurate and efficient because we don’t need to perform the propagation of the time-dependent wave function to the large distance. The procedure is based on the extension of the Kramers-Henneberger picture of the ionization process while the initial expressions involve the wave function in the laboratory frame only. This approach is applied to the accurate study of ATI processes of the rare gas atoms subject to intense laser pulse. We calculate and discuss ejected electron energy and angular distributions. The results reveal the electron spectrum dependence on the duration of the laser pulse and the carrier-envelope phase. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:46:02Z (GMT). No. of bitstreams: 1 ntu-99-R96222060-1.pdf: 10136662 bytes, checksum: e12acfd793c196d85d5f0ae40fb8a0d1 (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | 1 Introduction 1
2 Above-Threshold Ionization and High-order Harmonic Generation 4 2.1 Some histories of ATI and HHG . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Semiclassical modeling of strong field-matter interaction . . . . . . . . 8 2.2.1 Conclusion of Semiclassical Model . . . . . . . . . . . . . . . . . 13 3 Generalized Pseudospectral Time-dependent Method 14 3.1 Spectral Approximation . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.2 Generalized Pseudospectral for TDSE . . . . . . . . . . . . . . . . . . . 17 3.3 HHG Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4 Density Functional Theory 23 4.1 Hohenberg-Kohn theorem . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2 The Effective One-Particle Theory: Kohn-Sham Equation . . . . . . . . 26 4.2.1 Hartree-Fock and Exchange-Correlation Energy . . . . . . . . . 26 4.2.2 Kohn-Sham Equation . . . . . . . . . . . . . . . . . . . . . . . . 27 4.3 Self-Interaction Correction . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.4 Optimized Effective Potential (OEP) and KLI-SIC Method . . . . . . . 30 4.5 Time-Dependent Density Functional Theory . . . . . . . . . . . . . . . 32 4.5.1 Runge-Gross theorem . . . . . . . . . . . . . . . . . . . . . . . . 33 4.5.2 Time-dependent OEP formulation . . . . . . . . . . . . . . . . . 34 5 Theory of Electron Spectra of ATI 37 5.1 General Formalism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 5.2 Krammers-Henneberger Frame . . . . . . . . . . . . . . . . . . . . . . . 38 5.3 Specific Expression of the Coulumb interaction with the core . . . . . . 42 5.4 Specific Expressions with KS equation . . . . . . . . . . . . . . . . . . 44 6 Results and Discussions 46 6.1 ATI of Atomic hydrogen . . . . . . . . . . . . . . . . . . . . . . . . . . 46 6.2 ATI of Atomic Helium . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 7 Conclusion 56 A Exterior Complex Scaling 57 A.1 The Origins of Complex Scaling and Exterior Complex Scaling . . . . . 57 A.2 Scattering Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 A.3 Exterior Complex Scaling for Scattering State . . . . . . . . . . . . . . 60 A.4 Continuun State wavefunctions for atoms . . . . . . . . . . . . . . . . . 61 Bibliography 62 | |
| dc.language.iso | en | |
| dc.title | 強場雷射中原子的超閾值電離譜：近核區域波包的第一原理計算 | zh_TW |
| dc.title | Above-Threshold Ionization Spectra of Rare Gases
Atoms in Intense Laser Pulses: the Ab-initio Approach from Core Region of Wave Packet | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡政達,黃克寧 | |
| dc.subject.keyword | 多光子游離,閾值電離,密度泛函理論,擬譜方法,載波包相位, | zh_TW |
| dc.subject.keyword | multiphoton ionization,above-threshold Ionization,density functional theory,pseudospectral spectral method,carrier-envelope phase, | en |
| dc.relation.page | 71 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2010-08-06 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
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