Asymmetric ultra-short pulse splitting measured in air using FROG
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- Bernstein, A., Luk, T., Nelson, T. et al. Appl Phys B (2002) 75: 119. doi:10.1007/s00340-002-0929-1
Frequency-resolved optical gating is used to measure non-linear ultra-short pulse propagation in air over a distance of up to 4.35 m. During spatial collapse of the pulse, both pulse steepening and asymmetric pulse splitting are observed to occur at a power level of about 14 GW and at a propagation distance less than the diffraction length.