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A polydimethylsiloxane film patterned by a self-assembled array has been demonstrated as a strain sensor. A monolayer of 580 nm polystyrene spheres prepared by convective deposition was the template to transfer a periodic pattern to a polydimethylsiloxane (PDMS) film. Optical diffraction through the stretched PDMS film, enabled strain sensing perpendicular and parallel to the stretching direction, with sensitivities of 1.7 nm/% strain and 4.0 nm/% strain, respectively. The PDMS film was used as a vibration sensor at 50 Hz.
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Molina-Terriza, G., Sciarrino, F., Aizpurua, J., Marrucci, L., Saenz, J., Bonod, N. & MQRES Inter Tuition Fee only, M. I. T. F. O.
30/06/16 → …