Electromagnetic plane–wave response characteristics of non–axially excited slabs of dielectric thin–film helicoidal bianisotropic mediums

Autor:	Akhlesh Lakhtakia, Vijayakumar C. Venugopal
Rok vydání:	2000
Předmět:	Materials science Condensed matter physics Differential equation General Mathematics Mathematical analysis General Engineering Plane wave Physics::Optics General Physics and Astronomy Bragg's law Dielectric Excited state Homogeneity (physics) Sculptured thin film Axial symmetry
Zdroj:	Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 456:125-161
ISSN:	1471-2946 1364-5021
DOI:	10.1098/rspa.2000.0511
Popis:	Thin–film helicoidal bianisotropic mediums (TFHBMs) are rotationally non–homogeneous mediums whose microstructure consists of parallel helical columns. We characterize here the plane–wave response of non–axially excited dielectric TFHBM slabs. The constitutive relations for the dielectric TFHBMs are substituted into the time–harmonic Maxwell curl equations, and a 4 × 4 matrix ordinary differential equation is obtained. The piecewise homogeneity approximation method is shown to be reasonably robust to solve the differential equation. Bragg reflection by non–axially excited dielectric TFHBM slabs is investigated, and transmission characteristics are examined. The effects of several key illumination and constitutive parameters on the response of non–axially excited dielectric TFHBM slabs are studied to elucidate trends in functional relationships. A TFHBM bilayer is presented as an example of a device based on non–axially excited dielectric TFHBMs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb3d67cb31ed546e1c2078a691102d00 https://doi.org/10.1098/rspa.2000.0511 Zobrazit plný text záznamu