Schedule Aug 17, 2010
Potential Barrier Effects in Two-Photon Ionization and High-Order Harmonic Generation in the X-Ray Regime
Anthony Starace, Univ. of Nebraska & KITP

Potential barrier effects are well-known features of atomic photoionization cross sections [see, e.g., A.F. Starace, "Theory of Atomic Photoionization," Handbuch der Physik, 31, ed. by W. Mehlhorn (Springer-Verlag, Berlin, 1982), pp. 1-121]. I shall present recent results showing that potential barriers also greatly influence two-photon ionization processes as well as high-order harmonic generation from plasmas in the soft x-ray regime. Furthermore, they may allow extension of table-top harmonic generation for atomic targets into the soft x-ray regime.

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