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Noncollinear interaction of femtosecond filaments with enhanced third harmonic generation in air

  • Xuan Yang*
  • , Jian Wu
  • , Yan Peng
  • , Yuqi Tong
  • , Shuai Yuan
  • , Liangen Ding
  • , Zhizhan Xu
  • , Heping Zeng
  • *Corresponding author for this work
  • East China Normal University
  • CAS - Shanghai Institute of Optics and Fine Mechanics

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate that the interaction between two intense femtosecond filaments noncollinearly crossed in air results in third harmonic generation of more than two orders enhancement in energy conversion as compared with that from a single filament. The dependences of the third harmonic generation on the noncollinear crossing angles, input intensity ratios, and input pulse polarizations are investigated.

Original languageEnglish
Article number111103
JournalApplied Physics Letters
Volume95
Issue number11
DOIs
StatePublished - 2009

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