Ultrafast electron dynamics of a Na4 cluster under resonant femtosecond laser pulse train irradiation

Cong Wang, Ji'An Duan, Lan Jiang, Xiaoyan Sun, Youwang Hu, Jianying Zhou, Hua Wang, Yongfeng Lu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, the photoexcitation and ionization of a Na4 cluster under intense femtosecond laser irradiation is investigated using first-principles calculations. The real-time and real-space time-dependent density functional (TDDFT) is applied to describe the electron dynamics during the linear and nonlinear electron-photon interactions, including the dipole response, electron emission, energy absorption and transient electron density distribution. The calculated photoabsorption spectra show good correspondence with the experimental results and the simulations describe well the behavior of the ionization process. The effects of pulse train on electron dynamics are discussed for both the off resonance and on resonance cases. In addition, the time evolutions of experiment-linked probabilities for producing different charged ionic states at various laser conditions are presented.

Original languageEnglish (US)
Article number026001
JournalLaser Physics
Volume25
Issue number2
DOIs
StatePublished - Feb 1 2015

Fingerprint

Ultrashort pulses
Irradiation
irradiation
Ionization
Electrons
pulses
photon-electron interaction
lasers
ionization
Electronic density of states
electrons
Photoexcitation
Electron emission
energy absorption
Energy absorption
photoabsorption
Laser beam effects
photoexcitation
electron emission
density distribution

Keywords

  • electron dynamics
  • first-principles calculations
  • resonant ionization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Industrial and Manufacturing Engineering

Cite this

Ultrafast electron dynamics of a Na4 cluster under resonant femtosecond laser pulse train irradiation. / Wang, Cong; Duan, Ji'An; Jiang, Lan; Sun, Xiaoyan; Hu, Youwang; Zhou, Jianying; Wang, Hua; Lu, Yongfeng.

In: Laser Physics, Vol. 25, No. 2, 026001, 01.02.2015.

Research output: Contribution to journalArticle

Wang, Cong ; Duan, Ji'An ; Jiang, Lan ; Sun, Xiaoyan ; Hu, Youwang ; Zhou, Jianying ; Wang, Hua ; Lu, Yongfeng. / Ultrafast electron dynamics of a Na4 cluster under resonant femtosecond laser pulse train irradiation. In: Laser Physics. 2015 ; Vol. 25, No. 2.
@article{2199cfc98dc74f419caa8a1635ff546c,
title = "Ultrafast electron dynamics of a Na4 cluster under resonant femtosecond laser pulse train irradiation",
abstract = "In this study, the photoexcitation and ionization of a Na4 cluster under intense femtosecond laser irradiation is investigated using first-principles calculations. The real-time and real-space time-dependent density functional (TDDFT) is applied to describe the electron dynamics during the linear and nonlinear electron-photon interactions, including the dipole response, electron emission, energy absorption and transient electron density distribution. The calculated photoabsorption spectra show good correspondence with the experimental results and the simulations describe well the behavior of the ionization process. The effects of pulse train on electron dynamics are discussed for both the off resonance and on resonance cases. In addition, the time evolutions of experiment-linked probabilities for producing different charged ionic states at various laser conditions are presented.",
keywords = "electron dynamics, first-principles calculations, resonant ionization",
author = "Cong Wang and Ji'An Duan and Lan Jiang and Xiaoyan Sun and Youwang Hu and Jianying Zhou and Hua Wang and Yongfeng Lu",
year = "2015",
month = "2",
day = "1",
doi = "10.1088/1054-660X/25/2/026001",
language = "English (US)",
volume = "25",
journal = "Laser Physics",
issn = "1054-660X",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "2",

}

TY - JOUR

T1 - Ultrafast electron dynamics of a Na4 cluster under resonant femtosecond laser pulse train irradiation

AU - Wang, Cong

AU - Duan, Ji'An

AU - Jiang, Lan

AU - Sun, Xiaoyan

AU - Hu, Youwang

AU - Zhou, Jianying

AU - Wang, Hua

AU - Lu, Yongfeng

PY - 2015/2/1

Y1 - 2015/2/1

N2 - In this study, the photoexcitation and ionization of a Na4 cluster under intense femtosecond laser irradiation is investigated using first-principles calculations. The real-time and real-space time-dependent density functional (TDDFT) is applied to describe the electron dynamics during the linear and nonlinear electron-photon interactions, including the dipole response, electron emission, energy absorption and transient electron density distribution. The calculated photoabsorption spectra show good correspondence with the experimental results and the simulations describe well the behavior of the ionization process. The effects of pulse train on electron dynamics are discussed for both the off resonance and on resonance cases. In addition, the time evolutions of experiment-linked probabilities for producing different charged ionic states at various laser conditions are presented.

AB - In this study, the photoexcitation and ionization of a Na4 cluster under intense femtosecond laser irradiation is investigated using first-principles calculations. The real-time and real-space time-dependent density functional (TDDFT) is applied to describe the electron dynamics during the linear and nonlinear electron-photon interactions, including the dipole response, electron emission, energy absorption and transient electron density distribution. The calculated photoabsorption spectra show good correspondence with the experimental results and the simulations describe well the behavior of the ionization process. The effects of pulse train on electron dynamics are discussed for both the off resonance and on resonance cases. In addition, the time evolutions of experiment-linked probabilities for producing different charged ionic states at various laser conditions are presented.

KW - electron dynamics

KW - first-principles calculations

KW - resonant ionization

UR - http://www.scopus.com/inward/record.url?scp=84921523238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921523238&partnerID=8YFLogxK

U2 - 10.1088/1054-660X/25/2/026001

DO - 10.1088/1054-660X/25/2/026001

M3 - Article

AN - SCOPUS:84921523238

VL - 25

JO - Laser Physics

JF - Laser Physics

SN - 1054-660X

IS - 2

M1 - 026001

ER -