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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3125–3127

Efficient continuum generation exceeding 200 eV by intense ultrashort two-color driver

F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. De Silvestri, and S. Stagira  »View Author Affiliations


Optics Letters, Vol. 34, Issue 20, pp. 3125-3127 (2009)
http://dx.doi.org/10.1364/OL.34.003125


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Abstract

A temporal gating on the high-order harmonic emission process is achieved using an intense 20 fs, 1.45 μ m pulse (IR) in combination with an intense 13 fs, 800 nm pulse [visible (VIS)]. Exploiting this two-color gating scheme, a coherent continuous emission extending up to 160 eV using Ar gas and 200 eV using Ne gas is efficiently generated. The IR pulse contributes to significantly extending the harmonic emission to higher photon energies, whereas the VIS pulse improves the conversion efficiency of the process. These results indicate the possibility to produce bright attosecond pulses approaching the soft X spectral region.

© 2009 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Ultrafast Optics

History
Original Manuscript: July 22, 2009
Revised Manuscript: September 8, 2009
Manuscript Accepted: September 8, 2009
Published: October 7, 2009

Citation
F. Calegari, C. Vozzi, M. Negro, G. Sansone, F. Frassetto, L. Poletto, P. Villoresi, M. Nisoli, S. De Silvestri, and S. Stagira, "Efficient continuum generation exceeding 200 eV by intense ultrashort two-color driver," Opt. Lett. 34, 3125-3127 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-20-3125

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