Laser without population inversion of nitrogen ions pumped by femtosecond pulses

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


We attribute the mechanism of "lasing" action of nitrogen ions pumped by femtosecond IR pulses to a laser without inversion scheme. Numerical simulations reproduce well the temporal dynamics and pressure dependence of the emission.


  • Yi Liu
  • Rostyslav Danylo
  • Pengji Ding
  • Aurélien Houard
  • Vladimir Tikhonchuk
  • Xiang Zhang
  • Zhengquan Fan
  • Qingqing Liang
  • Songlin Zhuang
  • Luqi Yuan
  • André Mysyrowicz
External organisations
  • University of Shanghai for Science and Technology
  • University of Bordeaux
  • Institute of Physics of the Academy of Sciences of the Czech Republic
  • École Polytechnique
  • Stanford University
  • University of Paris-Saclay
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Title of host publicationCLEO
Subtitle of host publicationQELS_Fundamental Science, CLEO_QELS 2019
PublisherOptical Society of America
ISBN (Electronic)9781557528209
Publication statusPublished - 2019
Publication categoryResearch
EventCLEO: QELS_Fundamental Science, CLEO_QELS 2019 - San Jose, United States
Duration: 2019 May 52019 May 10


ConferenceCLEO: QELS_Fundamental Science, CLEO_QELS 2019
CountryUnited States
CitySan Jose