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Simulation of the ultrafast nonlinear optical response of metal slabs
Author(s) -
Wand Mathias,
Schindlmayr Arno,
Meier Torsten,
Förstner Jens
Publication year - 2011
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.201001219
Subject(s) - jellium , nonlinear system , ultrashort pulse , electron , nonlinear optical , metal , non equilibrium thermodynamics , physics , harmonic , optics , materials science , computational physics , quantum mechanics , laser , metallurgy
We present a nonequilibrium ab initio method for calculating nonlinear and nonlocal optical effects in metallic slabs with a thickness of several nanometers. The numerical analysis is based on the full solution of the time‐dependent Kohn–Sham equations for a jellium system and allows to study the optical response of metal electrons subject to arbitrarily shaped intense light pulses. We find a strong localization of the generated second‐harmonic current in the surface regions of the slabs.