Accurate analysis of wave propagation in negative uniaxial crystal

Author

Massaro, Alessandro ; Pierantoni, Luca ; Rozzi, Tullio

Author_Institution

Dipt. di Elettromagnetismo e Bioingegneria, Univ. Politecnica delle Marche, Ancona, Italy

Volume

40

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

821

Lastpage

829

Abstract

Polarization beam-splitters (PBSs) and polarization switches based on the birefringence of periodically laminated dielectric thin films are important tools in modern optics. In this paper, we present a rigorous analysis of multilayer PBSs by evaluating: 1) the fields outside the structure and 2) the electromagnetic coupling in laminated polarization splitters behaving as negative uniaxial crystals, in the case of Bragg condition. This analysis has been applied to an artificial anisotropic dielectric realized by means of layers of a-Si:H and SiO₂.

Keywords

Bragg gratings; birefringence; coupled mode analysis; dielectric thin films; light polarisation; optical beam splitters; optical multilayers; optical switches; Bragg condition; birefringence; electromagnetic coupling; multilayer PBS; negative uniaxial crystals; periodically laminated dielectric thin films; polarization beam-splitters; polarization switches; Birefringence; Dielectric thin films; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic wave polarization; Geometrical optics; Optical films; Optical polarization; Optical propagation; Optical switches; Multilayer; PBSs; TLM; negative uniaxial crystal; polarization beam-splitters; transmission-line method;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2004.824691

Filename

1303799