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)

Abstract

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
Volume33
Issue number2
DOIs
Publication statusPublished - Feb 1 2016

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phase matching
field strength
harmonic generations
scaling
extreme ultraviolet radiation
trajectories
harmonics
augmentation
radiation
profiles
gases
wavelengths

ASJC Scopus subject areas

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

Cite this

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AB - 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.

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