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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 2 — Jan. 19, 2009
  • pp: 538–543

Optics InfoBase > Optics Express > Volume 17 > Issue 2 > Page 538

Isolated sub-100-as pulse generation by optimizing two-color laser fields using simulated annealing algorithm

Li Zheng, Songsong Tang, and Xianfeng Chen  »View Author Affiliations


Optics Express, Vol. 17, Issue 2, pp. 538-543 (2009)
http://dx.doi.org/10.1364/OE.17.000538


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Abstract

We propose a method to broaden the cut-off region of high harmonic generation by optimizing the parameters of two-color laser fields synthesized by an intense 5 fs pulse at 800 nm and a relatively weak, subharmonic pulse at 2400 nm. Simulated Annealing (SA) algorithm is employed to optimize the electric field amplitude, pulse duration of the control pulse, and the time delay between two pulses. Our simulation shows that a broadened XUV supercontinuum with a 115 eV spectral width can be generated, which is two times broader compared with no optimization, and directly creates an isolated 76as pulse even without any phase compensation.

© 2009 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 29, 2008
Revised Manuscript: November 25, 2008
Manuscript Accepted: December 11, 2008
Published: January 7, 2009

Citation
Li Zheng, Songsong Tang, and Xianfeng Chen, "Isolated sub-100-as pulse generation by optimizing two-color laser fields using simulated annealing algorithm," Opt. Express 17, 538-543 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-2-538


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