Geometrical optics for inhomogeneous anisotropic medium: Application to a negative-graded index-of-refraction lens with an anisotropic material

Author

Zhai, Yong-Bo ; Cui, Tie-Jun ; Yin, Ying-Zeng

Author_Institution

Sch. of Inf. Sci. & Eng., Southeast Univ., Nanjing, China

fYear

2008

fDate

9-12 Nov. 2008

Firstpage

284

Lastpage

287

Abstract

In this paper, the method of geometric optics is applied to investigate wave propagation in a negative-graded refractive index lens with an anisotropic medium based on a presented modified eikonal equation valid for the most general form of an anisotropic or chiral medium. The far fields are obtained by means of the computed geometric optics field on the surface of the lens. The method is easily degenerated to the case of the isotropic medium and the computed far fields are compared with the 3-D fields simulation tools CST. The results show that good far field approximation can be obtained from the geometric optics field, especially within main lobe.

Keywords

anisotropic media; chirality; geometrical optics; gradient index optics; inhomogeneous media; lenses; optical design techniques; anisotropic material; chiral medium; computed geometric optics; far field approximation; geometrical optics; inhomogeneous anisotropic medium; modified eikonal equation; negative-graded index-of-refraction lens; wave propagation; Anisotropic magnetoresistance; Equations; Geometrical optics; Lenses; Optical computing; Optical propagation; Optical refraction; Optical surface waves; Optical variables control; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Metamaterials, 2008 International Workshop on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-2608-9

Electronic_ISBN

978-1-4244-2609-6

Type

conf

DOI

10.1109/META.2008.4723597

Filename

4723597