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Optical Properties of Gold in the Nonequilibrium Thermalized Stage
Author(s) -
Wenschuh U.,
Heiner E.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221600121
Subject(s) - non equilibrium thermodynamics , excited state , dielectric function , materials science , dielectric , absorption (acoustics) , noble metal , reflectivity , linear response theory , metal , function (biology) , condensed matter physics , molecular physics , optics , atomic physics , chemical physics , thermodynamics , physics , optoelectronics , metallurgy , composite material , evolutionary biology , biology
Basing on a recent paper and a linear response theory for highly excited systems far from equilibrium the macroscopic dielectric function (MDF) is evaluated for highly excited noble metal layers by means of the density–density Green's function in RPA with a crude consideration of the band structure of the metal. The evaluation of the time evolution of the directly measurable reflectivity and absorption is added. The results of a model calculation for gold are compared with the results of new time‐resolved pump‐probe‐experiments.