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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 11 — Jun. 1, 2014
  • pp: 3246–3249

Supercontinuum generation from 2 to 20  μm in GaAs pumped by picosecond CO2 laser pulses

J. J. Pigeon, S. Ya. Tochitsky, C. Gong, and C. Joshi  »View Author Affiliations

Optics Letters, Vol. 39, Issue 11, pp. 3246-3249 (2014)

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We report on the generation of supercontinuum radiation from 2 to 20 μm in a 67 mm long GaAs crystal pumped by a train of 3 ps CO2 laser pulses. Temporal measurements indicate that sub-picosecond pulse splitting is involved in the production of such wide-bandwidth radiation in GaAs. The results show that the observed spectral broadening is heavily influenced by four-wave mixing and stimulated Raman scattering.

© 2014 Optical Society of America

OCIS Codes
(140.3470) Lasers and laser optics : Lasers, carbon dioxide
(190.0190) Nonlinear optics : Nonlinear optics
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 1, 2014
Revised Manuscript: April 24, 2014
Manuscript Accepted: April 25, 2014
Published: May 26, 2014

J. J. Pigeon, S. Ya. Tochitsky, C. Gong, and C. Joshi, "Supercontinuum generation from 2 to 20  μm in GaAs pumped by picosecond CO2 laser pulses," Opt. Lett. 39, 3246-3249 (2014)

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