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Figure 2
Phase dependence of the spectrum analyzer output. (Top) Peak intensities of the first seven harmonics versus time delay Δt, plotted with a best-fit sine wave; curves are offset for clarity. Note that the peak of the fundamental is offset from zero by ∼0.8 ns, with rapidly decreasing offsets for the higher harmonics, due to the long tails of the detector pulses in the time domain (see text). (Bottom) Expanded plot of the 91st harmonic. The best-fit curve determines the coincidence time to better than 1 ps precision; curves shifted by ±5 ps are shown for comparison.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 5| September 2015| Pages 1293-1296
https://doi.org/10.1107/S1600577515014095
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