We demonstrate a flexible transmissive color filter based on a hybrid metallic–optical Tamm state device composed of a thin metallic film on top of dual dielectric distributed Bragg reflectors (DBRs) to simultaneously excite the Tamm plasmon (TP), the optical Tamm state (OTS), and the Fabry–Pérot (FP) resonant eigenmodes for spectrally achieving triple transmittance peaks in the visible light range. We show that the resonant eigenmodes confined inside the device can be tuned at will by simply adjusting the designed Bragg wavelengths of the dual DBRs and retain an ultranarrow bandwidth regardless of resonant wavelength, creating the desired chromaticity points and constructing a large color gamut space in the CIE coordinate. We further show that, due to the fabrication simplicity of our color filter involving only thin-film deposition, the proposed structure can be easily integrated onto flexible substrates, leading to tunable transmittance spectrum as well as the color appearance by simply changing its bending curvature. The tunable color filter reported herein can be employed for various applications such as aesthetical color decorations in architectures, low-cost and portable spectral analyzers, and optical strain/deformation sensors.

中文翻译：

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混合金属-光学Tamm状态器件中三共振本征模同时激发的柔性和超窄带透射彩色滤光片

我们演示了一种灵活的透射式彩色滤光片，该滤色片基于金属-光学Tamm混合状态设备，该设备由双电介质分布的布拉格反射器（DBR）顶部的金属薄膜构成，以同时激发Tamm等离子体（TP），光学Tamm状态（OTS） ）和法布里-珀罗（FP）共振本征模式，以光谱方式在可见光范围内实现三重透射峰。我们表明，可以通过简单地调整双DBR的设计布拉格波长并不受谐振波长影响而保留超窄带宽，创建所需的色度点并在其中构建较大的色域空间，来随意调整局限于设备内部的谐振本征模式。 CIE坐标。我们进一步表明，由于仅涉及薄膜沉积的彩色滤光片制造简单，所提出的结构可以很容易地集成到柔性基板上，通过简单地改变其弯曲曲率即可获得可调节的透射光谱以及色彩外观。本文报道的可调彩色滤光片可用于各种应用，例如建筑中的美学彩色装饰，低成本和便携式光谱分析仪以及光学应变/变形传感器。