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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 11 — May. 24, 2010
  • pp: 11308–11315

Mid-infrared modulated polarization gating for ultra-broadband supercontinuum generation

Weiyi Hong, Pengfei Wei, Qingbin Zhang, Shaoyi Wang, and Peixiang Lu  »View Author Affiliations

Optics Express, Vol. 18, Issue 11, pp. 11308-11315 (2010)

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We propose a method to control the harmonic process by a mid-IR modulated polarization gating for the effective generation of an ultra-broadband supercontinuum in the neutral rare-gas media. Using a mid-IR polarization gating pulse modulated by a weaker 800-nm linearly polarized pulse, the ionization, acceleration and recombination steps in the harmonic process are simultaneously controlled, leading to the efficient generation of an ultra-broadband supercontinuum covered by the spectral range from ultraviolet to water window x ray under the low ionization rate. The right phase-matching technique is employed to macroscopically select the short quantum path of the supercontinuum, then isolated sub-100-as pulses with tunable wavelengths are directly obtained. This supercontinuum also supports the pulse duration far below one atomic unit of time.

© 2010 Optical Society of America

OCIS Codes
(190.4160) Nonlinear optics : Multiharmonic generation
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6560) Spectroscopy : Spectroscopy, x-ray

ToC Category:
Nonlinear Optics

Original Manuscript: March 24, 2010
Revised Manuscript: April 29, 2010
Manuscript Accepted: May 12, 2010
Published: May 13, 2010

Weiyi Hong, Pengfei Wei, Qingbin Zhang, Shaoyi Wang, and Peixiang Lu, "Mid-infrared modulated polarization gating for ultra-broadband supercontinuum generation," Opt. Express 18, 11308-11315 (2010)

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