Publication: Opal-templated films for optical strain sensing
Issued Date
2020-05-25
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ISSN
10944087
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2-s2.0-85085613544
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Mahidol University
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SCOPUS
Bibliographic Citation
Optics Express. Vol.28, No.11 (2020), 16280-16287
Suggested Citation
Nonthanan Sitpathom, Tanyakorn Muangnapoh, Judith M. Dawes Opal-templated films for optical strain sensing. Optics Express. Vol.28, No.11 (2020), 16280-16287. doi:10.1364/OE.390095 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/58370
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Title
Opal-templated films for optical strain sensing
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Abstract
© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement 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.