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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 2 — Jan. 17, 2011
  • pp: 757–763

Energy and spectral enhancement of femtosecond supercontinuum in a noble gas using a weak seed

Trenton R. Ensley, Dmitry A. Fishman, Scott Webster, Lazaro A. Padilha, David J. Hagan, and Eric W. Van Stryland  »View Author Affiliations


Optics Express, Vol. 19, Issue 2, pp. 757-763 (2011)
http://dx.doi.org/10.1364/OE.19.000757


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Abstract

We experimentally demonstrate that the use of a weak seed pulse of energy less than 0.4% of the pump results in a spectral energy enhancement that spans over 2 octaves and a total energy enhancement of more than 3 times for supercontinua generated by millijoule level femtosecond pulses in Krypton gas. Strong four-wave mixing of the pump-seed pulse interacting in the gas is observed. The spectral irradiance generated from the seeding process is sufficiently high to use white-light continuum as an alternative to conventional tunable sources of radiation for applications such as nonlinear optical spectroscopy.

© 2011 OSA

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(190.4975) Nonlinear optics : Parametric processes
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Ultrafast Optics

History
Original Manuscript: November 15, 2010
Revised Manuscript: December 16, 2010
Manuscript Accepted: December 17, 2010
Published: January 5, 2011

Citation
Trenton R. Ensley, Dmitry A. Fishman, Scott Webster, Lazaro A. Padilha, David J. Hagan, and Eric W. Van Stryland, "Energy and spectral enhancement of femtosecond supercontinuum in a noble gas using a weak seed," Opt. Express 19, 757-763 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-2-757


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