Abstract

Surface relief gratings are holographically fabricated in thin polybutadiene rubber films produced by both spin coating and dip coating on glass and metal substrates. These thin-film gratings are characterized for their application as efficient transducers for detecting dynamic strain in solids. The performance of these rubber-grating transducers is compared to surface-mounted fiber Bragg gratings for a range of frequencies between 50Hz and 30kHz. Dynamic-strain sensitivity around 1/Hz is recorded for thin rubber-film grating transducers.

© 2006 Optical Society of America

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