Second-order nonlinearities localized in the regions adjacent to the ferroelectric domain wall in KTiOPO4 are used to realize a single-shot noncollinear frequency-resolved optical gating arrangement for ultrashort pulse characterization with high spatial resolution. Cerenkov phase matching is utilized to achieve spectral dispersion and makes the same nonlinear crystal applicable over wide spectral ranges from the visible to the mid-infrared.
© 2007 Optical Society of America
Original Manuscript: November 27, 2006
Revised Manuscript: March 30, 2007
Manuscript Accepted: April 4, 2007
Published: May 15, 2007
S. J. Holmgren, C. Canalias, and V. Pasiskevicius, "Ultrashort single-shot pulse characterization with high spatial resolution using localized nonlinearities in ferroelectric domain walls," Opt. Lett. 32, 1545-1547 (2007)