A single-shot autocorrelator for the ultraviolet based on multiphoton ionization of gases has been developed. It makes use of a modified Mach–Zehnder interferometer and a segmented two-photon-ionization chamber as a spatial square-of-intensity detector. The device has in principle a continuously variable temporal detection range from ∼50 fs to 50 ps.
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Szatmári et al. (1990) studied this question.
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