Title :
Is the Drude-Lorentz model adequate for a metallic slab within terahertz/infrared frequency range?
Author :
Makarov, N.M. ; Paredes-Juárez, A. ; Díaz-Monge, F. ; Pérez-Rodríguez, F.
Author_Institution :
Benemerita Univ. Autonoma de Puebla, Puebla, Mexico
Abstract :
The effect of spatial dispersion and size-effect in the electrodynamics of metallic slabs, having been studied with the formalism of the Boltzmann kinetic equation, turns out to be qualitatively different from that predicted by the widely-used Drude-Lorentz model. In particular, within the high-frequency region, the absorption oscillates as a function of wave frequency and sample thickness. Besides, the absorption becomes sensitive to the value of the electron Fermi velocity and nontrivially depends on the electron relaxation rate. The results may be very useful for the analysis of the electromagnetic response of metal-dielectric micro- and nanostructures in the terahertz and/or infrared frequency range.
Keywords :
Boltzmann equation; electrodynamics; high-frequency effects; infrared spectra; size effect; slabs; terahertz wave spectra; Boltzmann kinetic equation; Drude-Lorentz model; electrodynamics; electron Fermi velocity; metal-dielectric nanostructures; metallic slab; size effect; spatial dispersion; wave frequency;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2010 International Kharkov Symposium on
Conference_Location :
Kharkiv
Print_ISBN :
978-1-4244-7900-9
DOI :
10.1109/MSMW.2010.5546027