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Optics Letters

Optics Letters


  • Vol. 26, Iss. 2 — Jan. 15, 2001
  • pp: 99–101

Conversion of high-power 15-fs visible pulses to the mid infrared

J.-P. Likforman, M. Mehendale, D. M. Villeneuve, M. Joffre, and P. B. Corkum  »View Author Affiliations

Optics Letters, Vol. 26, Issue 2, pp. 99-101 (2001)

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We measure the efficiency of converting high-power 15-fs 0.8-μm pulses to the mid infrared in GaAs and GaSe as well as the pulse duration and the spectrum of the infrared radiation that is produced. Free-carrier production limits the conversion efficiency in GaAs to approximately 5×10-7 , allowing us to produce 2.5-pJ, 30-fs pulses spanning the spectral range from 6 to 14 μm . In GaSe we obtain, in a moderately saturated regime, a conversion efficiency of 7.5×10-5 , limited by two-photon absorption, allowing us to produce pulses of 100-fs duration containing 10 nJ of energy.

© 2001 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.0320) Ultrafast optics : Ultrafast optics
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

J.-P. Likforman, M. Mehendale, D. M. Villeneuve, M. Joffre, and P. B. Corkum, "Conversion of high-power 15-fs visible pulses to the mid infrared," Opt. Lett. 26, 99-101 (2001)

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