Paper
20 December 2019 Polarization-dependent plasmonic color filter based on different sizes nanodisk arrays built-up structure
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Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 1120934 (2019) https://doi.org/10.1117/12.2548795
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China
Abstract
The plasmonic color filter with a suitable bandwidth, high transmittance is usually regarded as an essential optical element for a variety of utilization. Here, we propose an ultra-thin plasmonic color filter based on a substrate free dielectric film waveguide composed of two sizes of metal-disk. The proposed plasmonic filter operates through the hybrid role of surface plasmon polariton (SPP) mode, the localized Fabry-Perot resonance, and waveguide mode. The filter consists of a waveguide layer (Si3N4), a buffer layer (MgF2) and a nanodisk (Al). This paper uses the finite difference time domain (FDTD) method. The boundary condition is the boundary condition of the perfectly matched layer(PML) with anisotropy in Y direction, and the periodic boundary condition is selected in X and Z directions. In this paper, the influence of the thickness of the waveguide layer, the thickness of the buffer layer and the nanodisk period on the transmission spectrum is discussed, and the polarization-dependence of the filter is also discussed. The results demonstrate that the filter has more than 80% transmittance and is related to polarization and can be implemented to color display and integrated optoelectronic devices.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuting Yang, Gongli Xiao, Hongyan Yang, and Kaifu Zhang "Polarization-dependent plasmonic color filter based on different sizes nanodisk arrays built-up structure", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 1120934 (20 December 2019); https://doi.org/10.1117/12.2548795
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KEYWORDS
Optical filters

Plasmonics

Metals

Waveguides

Aluminum

Transmittance

Polarization

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