Design and fabrication of bilayer metallic nanowire polarizers and color filters based on surface plasmon and waveguide mode resonances

Zhicheng Ye; Jun Zheng; Chenchen Zhang; Shu Sun

doi:10.1117/12.904042

29 November 2011 Design and fabrication of bilayer metallic nanowire polarizers and color filters based on surface plasmon and waveguide mode resonances

Zhicheng Ye, Jun Zheng, Chenchen Zhang, Shu Sun

Author Affiliations +

Proceedings Volume 8307, Passive Components and Fiber-Based Devices VIII; 830713 (2011) https://doi.org/10.1117/12.904042
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

Optical responses in Bi-layer metallic nanowire grating are investigated. There are two kinds of Surface Plasmon resonances: lateral propagating Surface Plasmon waveguide modes excited by the diffraction of the grating which lead to dips in transmission; Surface Plasmon resonance between the slits of the grating, which leads to high extinction ration of TM to TE transmission. With simultaneous resonances, a compacted device of integrated color filter and polarizer can be achieved. In order to improve the transmission of TM light, an undercut structure is proposed. The mechanism of the enhancement is analyzed. Bi-layer metallic nanowire gratings are fabricated by laser interference lithography and subsequent E-beam deposition. The measured transmission and reflection spectra confirmed the theoretical and numerical simulations. The results will have wide potential applications in Displays, Optical communication, and integrated Optics.

Citation Download Citation

Zhicheng Ye, Jun Zheng, Chenchen Zhang, and Shu Sun "Design and fabrication of bilayer metallic nanowire polarizers and color filters based on surface plasmon and waveguide mode resonances", Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 830713 (29 November 2011); https://doi.org/10.1117/12.904042

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