Comparative study of metallic and dielectric helix photonic metamaterial | Zendy

Arvinder Singh Chadha | Zendy; Deyin Zhao | Zendy; Weidong Zhou | Zendy

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Comparative study of metallic and dielectric helix photonic metamaterial

Author(s) -

Arvinder Singh Chadha,

Deyin Zhao,

Weidong Zhou

Publication year - 2014

Publication title -

optical materials express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.925

H-Index - 66

ISSN - 2159-3930

DOI - 10.1364/ome.4.002460

Subject(s) - materials science , polarizer , metamaterial , optics , specular reflection , dielectric , helix (gastropod) , polarization (electrochemistry) , optoelectronics , circular polarization , photonic crystal , photonics , photonic metamaterial , birefringence , physics , ecology , chemistry , snail , biology , microstrip

We compare the performance of metallic and dielectric thin film helix photonic metamaterial numerically. The simulated metal helix provides a 4 μm broad band circular dichroism with a polarization suppression ratio of 20:1. The transmission efficiency of the metal helix drops significantly with increasing number of helix turns and angle of incidence. Contraire, the simulated silicon dielectric helix structure provides an extremely high polarization suppression ratio above 2,300:1 with almost 100% transmission over a wide range of incident angles. The results provided highlights the trade-offs between the transmission efficiency and the specular and angular bandwidth for designing practical thin-film circular polarizers.

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