Periodic Planar Fabry-Pérot Nanocavities with Tunable Interference Colors Based on Filling Density Effects

Posted on 12.01.2021 - 18:18
Structural colors of high performance and economically feasible fabrication are desired in various applications. Herein, we demonstrate that reflective full-color filters based on the interference effect can be realized in periodic Fabry-Pérot (F-P) nanocavity arrays of the same thickness. Enabled by simply adjusting the nanocavity size and array period, the resonant wavelengths can be successively tuned in the whole visible light range, which is mainly attributed to the varied effective refractive index introduced by the different filling density of the F-P nanocavity. Compared to the plasmonic colors utilizing the similar nanostructures, the proposed interference colors offer unique advantages of higher color contrast, wider gamut and lower fabrication requirements. Besides, these color filters don’t involve modulating the vertical dimensions of the F-P nanocavities, which is conducive to the monolithic integration of multicolor optical cavities and their large-area applications in consumable products combined with replica patterning techniques, such as nanoimprinting and soft lithography.

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Yang, Zhengmei; Wang, Yasi; Chen, Yiqin; Zhang, Shi; Li, Ping; Duan, Huigao; et al. (2021): Periodic Planar Fabry-Pérot Nanocavities with Tunable Interference Colors Based on Filling Density Effects. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5241911.v2
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AUTHORS (7)

Zhengmei Yang
Yasi Wang
Yiqin Chen
Shi Zhang
Ping Li
Huigao Duan
Xupeng Zhu

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