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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 31, Iss. 8 — Aug. 1, 2014
  • pp: 1901–1905

Ultrabroadband XFROG of few-cycle mid-infrared pulses by four-wave mixing in a gas

A. A. Lanin, A. B. Fedotov, and A. M. Zheltikov  »View Author Affiliations


JOSA B, Vol. 31, Issue 8, pp. 1901-1905 (2014)
http://dx.doi.org/10.1364/JOSAB.31.001901


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Abstract

Cross-correlation frequency-resolved optical gating (XFROG) based on four-wave mixing (FWM) in a gas medium is shown to enable dispersion-free characterization of few-cycle mid-infrared (mid-IR) pulses tunable within a spectral range of more than two octaves. The FWM XFROG technique is used to measure spectra and pulse shapes, as well as to retrieve the phase of a few-cycle output of difference-frequency generation (DFG) tunable from 3 to 11 μm. With Ti:sapphire laser pulses used as a reference, this FWM process maps the entire tunability range of the DFG source, spanning over more than two octaves, onto a wavelength region of only 50 nm in the visible, allowing convenient XFROG measurements and revealing the reshaping of few-cycle mid-IR field waveforms by molecular rovibrational modes.

© 2014 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(190.7220) Nonlinear optics : Upconversion
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Nonlinear Optics

History
Original Manuscript: March 31, 2014
Revised Manuscript: May 23, 2014
Manuscript Accepted: May 24, 2014
Published: July 22, 2014

Citation
A. A. Lanin, A. B. Fedotov, and A. M. Zheltikov, "Ultrabroadband XFROG of few-cycle mid-infrared pulses by four-wave mixing in a gas," J. Opt. Soc. Am. B 31, 1901-1905 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-8-1901

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