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The temporal characteristics of Ne-like Ar 46.9nm X ray laser pulse

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We calculated the pulse shape of Ne-like Ar 46.9nm X ray laser which population inversion is from the electron impact excitation. We used the Cowan codes to calculate the level energy, radiative transition rate and oscillator strength of the 2s22p53p, 2s22p53s and 2s22p6 configurations. With the electron impact excitation (deexcitation) rate coefficients, the rate equations are established. Approximating the time dependent curve of electron temperature and density as a square wave, the time dependent curve of populations and 46.9nm laser photon number is calculated. Thus, the pulse shape is obtained. Finally, we analyzed the influence of gain duration, electron temperature and density on the pulse duration.

Original languageEnglish
Title of host publicationAdvanced Lasers, High-Power Lasers, and Applications XIV
EditorsJun Liu, Shibin Jiang, Ingmar Hartl
PublisherSPIE
ISBN (Electronic)9781510667693
DOIs
StatePublished - 2023
EventAdvanced Lasers, High-Power Lasers, and Applications XIV 2023 - Beijing, China
Duration: 14 Oct 202316 Oct 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12760
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAdvanced Lasers, High-Power Lasers, and Applications XIV 2023
Country/TerritoryChina
CityBeijing
Period14/10/2316/10/23

Keywords

  • Cowan codes
  • electron impact excitation
  • pulse shape
  • rate equation

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