W-band Pancharatnam half-wave plate based on negative refractive index metamaterials

Imran Mohamed, Giampaolo Pisano, Ming Wah Ng

    Research output: Contribution to journalArticlepeer-review

    75 Downloads (Pure)

    Abstract

    © 2014 Optical Society of America.Electromagnetic metamaterials, made from arrangements of subwavelength-sized structures, can be used to manipulate radiation. Designing metamaterials that have a positive refractive index along one axis and a negative refractive index along the orthogonal axis can result in birefringences, Δn > 1. The effect can be used to create wave plates with subwavelength thicknesses. Previous attempts at making wave plates in this way have resulted in very narrow usable bandwidths. In this paper, we use the Pancharatnam method to increase the usable bandwidth. A combination of finite element method and transmission line models was used to optimize the final design. Experimental results are compared with the modeled data.
    Original languageEnglish
    Pages (from-to)2001-2006
    Number of pages5
    JournalApplied Optics
    Volume53
    Issue number10
    DOIs
    Publication statusPublished - 1 Apr 2014

    Keywords

    • metamaterial
    • wave plate
    • negative refractive index
    • pancharatnam
    • left handed metamaterial
    • polarisation

    Fingerprint

    Dive into the research topics of 'W-band Pancharatnam half-wave plate based on negative refractive index metamaterials'. Together they form a unique fingerprint.

    Cite this