ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
Covert Optical Fingerprints Within Overt Structural Colors via Cascaded Cavity Resonances.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Structural colors and stochastic optical fingerprints are difficult to integrate within a single nanophotonic platform because deterministic optical uniformity often conflicts with disorder-driven optical randomness. Here, we introduce cascaded cavity resonances to weakly correlate and control these two optical functionalities through vertically integrated layered and nanogap cavities. In this multiscale architecture, layered photonic cavities govern overt far-field structural coloration, whereas localized plasmonic nanogap cavities generate covert stochastic optical scattering with minimal dependence on the overt optical appearance. The proposed architecture, consisting of a Cu mirror, HfO
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