Subcycle Dynamics of Photon Emission Spectra of Rare Gases Atoms Excited by Attosecond Pulses and Driven by Near-Infrared Laser Field: Self-Interaction-Free Time-Dependent Density-Functional-Theory Approach
Date Issued
2014
Date
2014
Author(s)
Chou, Chi-Hui
Abstract
We present an ab initio method to study the sub-cycle dynamics of hydrogen, helium and neon atoms in near-infrared(NIR) laser fields subject to excitation by a single extreme ultraviolet attosecond pulse(SAP). We extended the self-interaction-free time-dependent density functional theory(TD-KLI-SIC) to describe multi-electron system and solve the time-dependent Kohn-Sham equations by time-dependent generalized pseudospectral(TDGPS) method. We calculated the photon emission spectra and population of several excited states as the function of the time delay between the NIR pulse and SAP. The phenomena can be explain by two-photon absorption.
Subjects
阿秒脈衝
自作用修正時變密度泛涵理論
半雷射週期現象
Type
thesis
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