An all-dielectric broadband high-transmission efficiency circular polarizer

Arvinder Singh Chadha; Deyin Zhao; Weidong Zhou

doi:10.1117/12.2040295

19 February 2014 An all-dielectric broadband high-transmission efficiency circular polarizer

Arvinder Singh Chadha, Deyin Zhao, Weidong Zhou

Proceedings Volume 8994, Photonic and Phononic Properties of Engineered Nanostructures IV; 89941M (2014) https://doi.org/10.1117/12.2040295
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

We investigated numerically an all-dielectric semiconductor-based circular polarizer consisting of silicon helix on glass substrate. Only three turns of the dielectric helix structure provides extremely high polarization suppression ratio above 2,300:1 with almost 100% transmission. Transmission efficiency greater than 85% for one circularly polarized light is maintained for incident angles as high as 30⁰. The influence of the various helix lattice parameters on the polarization gap and the circular dichroism is also presented.

Citation Download Citation

Arvinder Singh Chadha, Deyin Zhao, and Weidong Zhou "An all-dielectric broadband high-transmission efficiency circular polarizer", Proc. SPIE 8994, Photonic and Phononic Properties of Engineered Nanostructures IV, 89941M (19 February 2014); https://doi.org/10.1117/12.2040295

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