Time-dependent analysis of a parametric lens detected with a 100-fs Ti:sapphire laser.
The second-order parametric lens effect shows a temporal limit as a saturable-absorber device for operation in the ultrafast time region. We present and discuss an extended theoretical model dealing with second-order cascaded processes in a nonstationary condition. Experimentally we report the detection of the time-averaged lens effect in the hundred-of-femtoseconds range, discussing the limits that arise in this ultrafast optical region.
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Toci
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McGraw
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Pini
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Salimbeni
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Vannini