We propose low-power designs of electrotunable absorption- and transmission-mode color filters and optical switches based on a metal–dielectric–metal structure. By applying voltage across an electro-optic polymer, used as a dielectric layer, tunable color filtering is achieved over a voltage range of ${-}10 \; {\rm{V}}$ to $+{{10}}\;{\rm{V}}$. Moreover, by adjusting each layer thickness, such designs can also be used as optical switches at 1550 nm telecom wavelength, exhibiting unmatched ${\sim}99\%$ switching efficiency, operable with only 5 V power supply. Our theoretical results agree well with full-wave simulations. Our design is lithography-free, large-area compatible, power-efficient, polarization-independent, and angle-insensitive and has an extremely narrow bandwidth (12 nm).

中文翻译：

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电可调滤色镜和光学开关的低功耗设计

我们提出了一种基于金属-电介质-金属结构的低功率设计的电可调吸收和透射模式滤色镜以及光学开关。通过在用作介电层的电光聚合物上施加电压，可在$ {-} 10 \的电压范围内实现可调滤色。{\ rm {V}} $到$ + {{10}} \ ;; {\ rm {V}} $。此外，通过调整每个层的厚度，此类设计还可以用作电信波长为1550 nm的光开关，表现出无与伦比的$ {\ sim} 99 \％$开关效率，仅需5 V电源即可工作。我们的理论结果与全波模拟非常吻合。我们的设计是无光刻技术，大面积兼容，省电，偏振无关和角度不敏感的，并且带宽极窄（12 nm）。