Frequency-domain holography is used to measure ultrafast phase shifts induced either by the nonlinear susceptibility Χ<sup>3</sup> of fused silica or by ionization fronts in air over a temporal region of 1 ps with 70-fs resolution in a single shot. The use of an imaging spectrometer adds one-dimensional spatial resolution to the single-shot temporal measurements.
© 2000 Optical Society of America
(090.2880) Holography : Holographic interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(320.7100) Ultrafast optics : Ultrafast measurements
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
S. P. Le Blanc, E. W. Gaul, N. H. Matlis, A. Rundquist, and M. C. Downer, "Single-shot measurement of temporal phase shifts by frequency-domain holography," Opt. Lett. 25, 764-766 (2000)