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(ω1,ω2). Four types of metal surfaces are considered: simple metals, alkali metal overlayers, noble metals, and charged metal surfaces. Differences and similarities with respect to second harmonic generation from these surfaces are pointed out.
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Received: 20 September 1998
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Liebsch, A. Theory of sum frequency generation from metal surfaces . Appl Phys B 68, 301–304 (1999). https://doi.org/10.1007/s003400050623
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DOI: https://doi.org/10.1007/s003400050623