Field strength scaling in quasi-phase-matching of high-order harmonic generation by low-intensity assisting fields

Emeric Balogh, K. Varjú

Research output: Contribution to journalArticle

2 Citations (Scopus)


High-order harmonic generation in gas targets is a widespread scheme used to produce extreme ultraviolet radiation; however, it has a limited microscopic efficiency. Macroscopic enhancement of the produced radiation relies on phase-matching, often only achievable in quasi-phase-matching arrangements. In the present work we numerically study quasi-phase-matching induced by low-intensity assisting fields. We investigate the required assisting field strength dependence on the wavelength and intensity of the driving field, harmonic order, trajectory class, and period of the assisting field. We comment on the optimal spatial beam profile of the assisting field.

Original languageEnglish
Pages (from-to)230-238
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Issue number2
Publication statusPublished - Feb 1 2016


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Statistical and Nonlinear Physics

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