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一种具有光学传感器和开关功能的多通道滤色器。

A multichannel color filter with the functions of optical sensor and switch.

作者信息

Chou Chau Yuan-Fong, Chou Chao Chung-Ting, Huang Hung Ji, Chen Sy-Hann, Kao Tsung Sheng, Chiang Hai-Pang

机构信息

Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong, BE1410, Brunei Darussalam.

Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, 20224, Taiwan, ROC.

出版信息

Sci Rep. 2021 Nov 25;11(1):22910. doi: 10.1038/s41598-021-02453-2.

DOI:10.1038/s41598-021-02453-2
PMID:34824366
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8617143/
Abstract

This paper reports a multichannel color filter with the functions of optical sensor and switch. The proposed structure comprises a metal-insulator-metal (MIM) bus waveguide side-couples to six circular cavities with different sizes for filtering ultra-violet and visible lights into individual colors in the wavelength range of 350-700 nm. We used the finite element method to analyze the electromagnetic field distributions and transmittance properties by varying the structural parameters in detail. The designed plasmonic filter takes advantage of filtering out different colors since the light-matter resonance and interference between the surface plasmon polaritons (SPPs) modes within the six cavities. Results show that the designed structure can preferentially select the desired colors and confine the SPPS modes in one of the cavities. This designed structure can filter eleven color channels with a small full width at half maximum (FWHM) ~ 2 nm. Furthermore, the maximum values of sensitivity, figure of merit, quality factor, dipping strength, and extinction ratio can achieve of 700 nm/RIU, 350 1/RIU, 349.0, 65.04%, and 174.50 dB, respectively, revealing the excellent functions of sensor performance and optical switch, and offering a chance for designing a beneficial nanophotonic device.

摘要

本文报道了一种具有光学传感器和开关功能的多通道滤色器。所提出的结构包括一个金属 - 绝缘体 - 金属（MIM）总线波导，其侧面耦合到六个不同尺寸的圆形腔，用于将紫外光和可见光滤光为波长范围在350 - 700 nm的单独颜色。我们使用有限元方法，通过详细改变结构参数来分析电磁场分布和透射率特性。所设计的等离子体滤波器利用六个腔内表面等离激元极化子（SPP）模式之间的光 - 物质共振和干涉来滤出不同颜色。结果表明，所设计的结构可以优先选择所需颜色，并将表面等离激元极化子模式限制在其中一个腔内。这种设计结构可以滤出11个颜色通道，半高宽（FWHM）小至约2 nm。此外，灵敏度、品质因数、质量因子、凹陷强度和消光比的最大值分别可达700 nm/RIU、350 1/RIU、349.0、65.04%和174.50 dB，揭示了其优异的传感器性能和光开关功能，为设计有益的纳米光子器件提供了契机。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/256b431305bf/41598_2021_2453_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/d2b462f7ffbc/41598_2021_2453_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/40f4ddfab21a/41598_2021_2453_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/081663586493/41598_2021_2453_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/c4beb1e16355/41598_2021_2453_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/a69402d38fcc/41598_2021_2453_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/8bb5c9ed3081/41598_2021_2453_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/663466480dc4/41598_2021_2453_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/1a9a0f27b66c/41598_2021_2453_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/9e4ead7b5e04/41598_2021_2453_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/ede057a95da2/41598_2021_2453_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/256b431305bf/41598_2021_2453_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/d2b462f7ffbc/41598_2021_2453_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/40f4ddfab21a/41598_2021_2453_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/081663586493/41598_2021_2453_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/c4beb1e16355/41598_2021_2453_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/a69402d38fcc/41598_2021_2453_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/8bb5c9ed3081/41598_2021_2453_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/663466480dc4/41598_2021_2453_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/1a9a0f27b66c/41598_2021_2453_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/9e4ead7b5e04/41598_2021_2453_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/ede057a95da2/41598_2021_2453_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3bef/8617143/256b431305bf/41598_2021_2453_Fig11_HTML.jpg

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