High intensity femtosecond laser pump-probing measurements of a Cu surface

Ding Liu, D. R. Alexander

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Abstract

Both the time and pumping power dependences of the reflectivity of a Cu surface were measured. The role of free electrons and the d-band electrons in the time dependent reflectivity changes are analyzed. Theoretical calculations based on a d-band transition model have been performed to describe the power dependence of the reflectivity changes. Results suggest that d-band electron transitions play an important role especially at early times and low pumping intensities.

Original languageEnglish (US)
Number of pages1
JournalApplied Physics Letters
Volume67
DOIs
StatePublished - Dec 1 1995

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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