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Nonequilibrium Thermoreflectance Evolution of Laser Irradiated Noble Metals
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.2221620128
Subject(s) - non equilibrium thermodynamics , laser , irradiation , noble metal , hamiltonian (control theory) , copper , materials science , coupling (piping) , metal , optics , physics , thermodynamics , metallurgy , quantum mechanics , mathematical optimization , mathematics
A theory for the evalution of the optical properties of laser irradiated noble metal layers in a thermalized nonequilibrium stage presented recently is applied to the calculation of transient thermoreflectance alterations in gold, silver, and copper. An improvement of the theory that simplifies direct comparisons with experiments is given after the introduction of the laser intensity into the interacting term of the model Hamiltonian which describes the coupling of the laser field to the electron system. Numerical results are discussed in view of new time‐resolved pump‐probe‐experiments.