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Proceedings Paper

Design of the subwavelength dual-layer metallic nanowire-grid polarizer
Author(s): Yun Zhou; Yan Ye; Su Shen; Donglin Pu; Linsen Chen
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Paper Abstract

A novel subwavelength dual-layer metallic nanowire-grid polarizer is designed for visible region. The difference between the designed and the available nanowire-grid polarizer is that the former adds a high refractive index dielectric layer between the substrate and the dielectric grating. It is found that the high refractive index dielectric layer can improve the performance of polarizer. Effects of the thickness of the high refractive index dielectric layer, the incident angle and the duty cycle on the TM polarization transmission efficiency as well as the extinction ratios are analyzed using rigorous couple-wave theory. Based on the simulation results, a polarizer with high TM transmission efficiency and high extinction ratios over a wide incident angle is designed. It gives TM transmission efficiency over 79% and extinction ratios higher than 56.6dB until the incident angle is θ= 60°

Paper Details

Date Published: 3 February 2009
PDF: 9 pages
Proc. SPIE 7159, 2008 International Conference on Optical Instruments and Technology: MEMS/NEMS Technology and Applications, 71590O (3 February 2009); doi: 10.1117/12.807254
Show Author Affiliations
Yun Zhou, Soochow Univ. (China)
Yan Ye, Soochow Univ. (China)
Su Shen, Soochow Univ. (China)
Donglin Pu, Soochow Univ. (China)
Linsen Chen, Soochow Univ. (China)


Published in SPIE Proceedings Vol. 7159:
2008 International Conference on Optical Instruments and Technology: MEMS/NEMS Technology and Applications

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