Infrared resonances of local fields and ellipsometric spectra of negative-refraction metamaterials

Warning

This publication doesn't include Faculty of Sports Studies. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

HUMLÍČEK Josef

Year of publication 2011
Type Article in Periodical
Magazine / Source Thin Solid Films
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1016/j.tsf.2010.12.055
Field Solid matter physics and magnetism
Keywords Ellipsometry; Infrared; Metamaterials
Description Suitable combinations of the optical response and geometrical form of flat or curved interfaces of the constituents in nanometer-sized metamaterials can lead to a strong enhancement of local fields, seen typically as sharp spectral resonances in optical spectra. We propose a classification of the resonant phenomena in inhomogeneous systems within the effective-medium approximation, and examine their manifestation in infrared ellipsometry. We report mid-infrared ellipsometric spectra of a doped semiconductor metamaterial, exhibiting negative refraction. We provide a simple explanation for the difference in the directions of the phase- and energy propagation. The resonance responsible for a strong anisotropy and the interesting behavior of refracted light is found to lead to characteristic features in the ellipsometric spectra.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.

More info