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Lee, Elaine; Zhang, Milin; Cho, Yigil; Cui, Yue; Van der Spiegel, Jan; Engheta, Nader; Yang, Shu
Advanced materials (Weinheim), June 25, 2014, Letnik: 26, Številka: 24Journal Article
We demonstrate the design and fabrication of tilted micropillar arrays on wrinkled elastomeric poly(dimethylsiloxane) as a reversibly switchable optical window. Upon re‐stretching the as‐prepared (opaque) film to the original pre‐strain, the grating color is restored and ∼30% transmittance is recovered. Further stretching beyond the pre‐strain makes the film more transparent. This process is fully reversible and repeatable for many cycles.
