Fine interference fringes formed in high-order harmonic spectra generated by infrared driving laser pulses

  • Han Xu*
  • , Hui Xiong
  • , Zhinan Zeng
  • , Yuxi Fu
  • , Jinping Yao
  • , Ruxin Li
  • , Ya Cheng
  • , Zhizhan Xu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

We experimentally investigate the high-order harmonic generation in argon gas using a driving laser pulse at a center wavelength of 1240 nm. High-contrast fine interference fringes could be observed in the harmonic spectra near the propagation axis, which is attributed to the interference between long and short quantum paths. We also systematically examine the variation of the interference fringe pattern with increasing energy of the driving pulse and with different phase-matching conditions.

Original languageEnglish
Article number033841
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume78
Issue number3
DOIs
StatePublished - 30 Sep 2008
Externally publishedYes

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