Macquarie University; Mahidol University; National Science & Technology Development Agency - Thailand; National Nanotechnology Center (NANOTEC)
Type
Article
Source Title
OPTICS EXPRESS
ISSN
1094-4087
Year
2020
Volume
28
Issue
11
Page
16280-16287
Open Access
gold
Publisher
OPTICAL SOC AMER
DOI
10.1364/OE.390095
Format
PDF
Abstract
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 50Hz. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
