CCL: High frequency dynamical polarizability and basis sets



Hi CCLers,

I'd like to ask for suggestions on how to compute high-frequency dynamical polarizability (e.g. ultraviolet radiation).  The radiation is at at frequency where an electron is likely to ionized and thus the polarizability increases with  increasingly diffuse basis sets.  Is there a method or a code to deal with such situations?  I was thinking to include scatter states (e.g. plane waves) but I wanted expert opinions before I began such an undertaking.

Thank you,
JDW

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Dr. J. D. Whitfield
Ford VCQ Postdoctoral Fellow
Vienna Center for Quantum Science and Technology

web: homepage.univie.ac.at/james.whitfield