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

Full Article  |  PDF Article
OSA Recommended Articles
Generation of sub-two-cycle mid-infrared pulses by four-wave mixing through filamentation in air

Takao Fuji and Toshinori Suzuki
Opt. Lett. 32(22) 3330-3332 (2007)

Generation of tunable octave-spanning mid-infrared pulses by filamentation in gas media

Mark Cheng, Anthony Reynolds, Heather Widgren, and Munira Khalil
Opt. Lett. 37(11) 1787-1789 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription