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Second Harmonic Generation from Alkali Thin Films on AG(110)

Published online by Cambridge University Press:  25 February 2011

K. J. Song,
D. Heskett,
L. Urbach,
H. L. Dai and
E. W. Plummer
K. J. Song
Affiliation:
Department of Physics and Chemistry and The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
D. Heskett
Affiliation:
Department of Physics and Chemistry and The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
L. Urbach
Affiliation:
Department of Physics and Chemistry and The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
H. L. Dai
Affiliation:
Department of Physics and Chemistry and The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
E. W. Plummer
Affiliation:
Department of Physics and Chemistry and The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
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Abstract

The sensitivity of second harmonic generation at interfaces has been utilized to probe the spatial and frequency dependence of the local field generated near the surface of a nearly free electron metal by an externally imposed electromagnetic field. The longitudinal screening field was found to oscillate with a wavelength on the order of 10Å and to propagate into the bulk several layers deep.

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References

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