Lossy gradient index transmission optics with arbitrary periodic permittivity and permeability and constant impedance throughout the structure
2012 (English)In: Journal of Optics, ISSN 2040-8978, Vol. 14, no 6, 065102- p.Article in journal (Refereed) Published
A remarkably simple exact analytical solution is obtained for the electromagnetic field distribution across infinite metamaterial-containing composites with any arbitrary periodic variation of complex effective permittivity and permeability for the case of constant impedance across the structure. Arbitrary temporal dispersion and losses are allowed and the model is generally applicable to different inhomogeneous and anisotropic media simultaneously containing positive and negative refractive index constituents, as long as the effective medium approximation remains valid. The analytical solution is validated by a dispersive numerical model of lossy metamaterials that uses a transmission line matrix method based on Z-transforms, where a close agreement between the analytic and numerical results is obtained.
Place, publisher, year, edition, pages
2012. Vol. 14, no 6, 065102- p.
metamaterials, negative refractive index, wave propagation, exact analytic solution, gradient refractive index, dispersive numerical model
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-99085DOI: 10.1088/2040-8978/14/6/065102ISI: 000305391100007ScopusID: 2-s2.0-84861820942OAI: oai:DiVA.org:kth-99085DiVA: diva2:541488
QC 201207182012-07-182012-07-132012-07-18Bibliographically approved