Abstract
The temporal behaviour and spectraldistribution of white-light continuum generation in H2O using a focusedintense 800 nm 130 fs Ti:sapphire laser were studied. The resultsindicated that the white-light continuum spectrally ranged from 1000 to400 nm, which was mainly attributed to self-phase modulation related tothe Kerr effect and ionization. The pulse duration of different spectralcomponents of the generated white-light continuum, which was measured withthe frequency up-conversion technique, was obtained around 137 fs. Itrevealed a comparable time resolution as the original laser pulse.
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