Jw. Nicholson et al., Full-field characterization of femtosecond pulses by spectrum and cross-correlation measurements, OPTICS LETT, 24(23), 1999, pp. 1774-1776
We present a practical and accurate technique for retrieving the amplitude
and the phase of ultrashort pulses from a nonlinear (second-order) intensit
y cross correlation and the spectrum that overcomes shortcomings of previou
s attempts. We apply the algorithm to theoretical and experimental data and
compare it with frequency-resolved optical gating. (C) 1999 Optical Societ
y of America.