期刊
OPTICAL MATERIALS EXPRESS
卷 12, 期 10, 页码 3970-3981出版社
Optica Publishing Group
DOI: 10.1364/OME.467967
关键词
-
资金
- Engineering and Physical Sciences Research Council [EP/N035437/1]
Dynamic structural color provides a time dimension to enhance information load and functionality. This study presents the inverse design of a dynamic structural color asymmetric Fabry-Perot cavity using parameter-based conditional generative adversarial networks. The designed structure achieves a large gamut and color coverage variation through the phase change of a VO2 layer.
Dynamic structural color provides an additional time dimension in contrast to the static one, enriching the information load and functionalities. As a phase change material, vanadium dioxide offers great opportunities to implement dynamic structural color as its insulator -metal transition. Nevertheless, the multiple states also place a barrier to the efficient design of the structure configurations. This work firstly reports the dynamic structural color inverse design of asymmetric Fabry-Perot cavity through a parameter-based conditional generative adversarial networks approach. The proposed structure attains a gamut as large as 117% of sRGB in the insulator state and can produce a 5% color coverage variation via the phase change of VO2 layer. By using the trained conditional generative adversarial networks, the inverse design accuracy with the average color difference increment E of 0.98 is achieved. A monochromatic pattern is designed by the trained networks to demonstrate different color dynamics of the various structures.
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