Abstract
We demonstrate the interference phenomenon in the White Light Continuum (WLC) generated by a single femtosecond laser beam. Different kinds of spatial interference patterns of the WLC generation under various conditions were investigated. The spatial patterns were attributed to interference between the filaments in the WLC generated by the fundamental laser beam yielding the diffraction effect from spatial confinement. Simulations of different patterns were performed. By comparing the results of simulation with those of experiments, the distances of several micrometers between the neighboring filaments can be derived, which agree with the literature values from direct measurements.
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