A focusing metamaterial based Wollaston Prism

Author

Moseley, Paul ; Savini, Giorgio ; Saenz, Elena ; Ade, Peter ; Jin Zhang

Author_Institution

Phys. & Astron. Dept., Univ. Coll. London, London, UK

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

By using existing metal mesh technology we propose a new lens design that behaves in a similar way to a Wollaston Prism. That is, a device that separates out the two linear polarised states of the incident field and then focuses them separately on same focal plane. The design is an evolution of an existing GRIN lens based on the same technology. The proposed lens design has a diameter of 75mm while only being 2mm thick. This will focus two beams at a distance of 250mm with a separation of 10mm, over the frequency range of 100-200GHZ. Such a device would be useful where space and weight are an issue and would allow the use of incoherent detectors.

Keywords

focusing; gradient index optics; lenses; microwave metamaterials; millimetre wave materials; optical prisms; GRIN lens; Wollaston prism; focal plane; focusing metamaterial; frequency 100 GHz to 200 GHz; lens design; metal mesh technology; size 2 mm; size 75 mm; Astronomy; Educational institutions; Indexes; Lenses; Materials; Metals; Refractive index;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956347

Filename

6956347