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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9801–9806

Gas jet structure influence on high harmonic generation

James Grant-Jacob, Benjamin Mills, Thomas J Butcher, Richard T Chapman, William S Brocklesby, and Jeremy G Frey  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9801-9806 (2011)
http://dx.doi.org/10.1364/OE.19.009801


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Abstract

Gas jets used as sources for high harmonic generation (HHG) have a complex three-dimensional density and velocity profile. This paper describes how the profile influences the generation of extreme-UV light. As the position of the laser focus is varied along the jet flow axis, we show that the intensity of the output radiation varies by approximately three times, with the highest flux being observed when the laser is focused into the Mach disc. The work demonstrated here will aid in the optimization of HHG flux from gas jet sources. The flux increase is attributed to a density increase within the structure of the jet, which is confirmed by simultaneous imaging of atom and ion fluorescence from the jet.

© 2011 OSA

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(100.0118) Image processing : Imaging ultrafast phenomena

ToC Category:
Nonlinear Optics

History
Original Manuscript: November 29, 2010
Revised Manuscript: March 3, 2011
Manuscript Accepted: March 9, 2011
Published: May 5, 2011

Citation
James Grant-Jacob, Benjamin Mills, Thomas J Butcher, Richard T Chapman, William S Brocklesby, and Jeremy G Frey, "Gas jet structure influence on high harmonic generation," Opt. Express 19, 9801-9806 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9801


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