Wavelength Scaling of High Harmonic Generation Efficiency

A. D. Shiner, C. Trallero-Herrero, N. Kajumba, H.-C. Bandulet, D. Comtois, F. Légaré, M. Giguère, J-C. Kieffer, P. B. Corkum, and D. M. Villeneuve
Phys. Rev. Lett. 103, 073902 – Published 14 August 2009

Abstract

Using longer wavelength laser drivers for high harmonic generation is desirable because the highest extreme ultraviolet frequency scales as the square of the wavelength. Recent numerical studies predict that high harmonic efficiency falls dramatically with increasing wavelength, with a very unfavorable λ(56) scaling. We performed an experimental study of the high harmonic yield over a wavelength range of 800–1850 nm. A thin gas jet was employed to minimize phase matching effects, and the laser intensity and focal spot size were kept constant as the wavelength was changed. Ion yield was simultaneously measured so that the total number of emitting atoms was known. We found that the scaling at constant laser intensity is λ6.3±1.1 in Xe and λ6.5±1.1 in Kr over the wavelength range of 800–1850 nm, somewhat worse than the theoretical predictions.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 16 April 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.073902

©2009 American Physical Society

Authors & Affiliations

A. D. Shiner1, C. Trallero-Herrero1, N. Kajumba1, H.-C. Bandulet2, D. Comtois2, F. Légaré2, M. Giguère2, J-C. Kieffer2, P. B. Corkum1, and D. M. Villeneuve1,*

  • 1National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6, Canada
  • 2INRS-Énergie et Matériaux, 1650 boulevard Lionel-Boulet, C.P. 1020, Varennes (Québec) J3X 1S2, Canada

  • *david.villeneuve@nrc.ca.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 103, Iss. 7 — 14 August 2009

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×