Taguenang JM, Kassu A, Govindarajalu G, Dokhanian M, Sharma A, Ruffin PB, Brantley C. Fabrication and characterization of a diffraction-grating transducer in thin polybutadiene rubber film for sensing dynamical strain.
APPLIED OPTICS 2006;
45:6903-9. [PMID:
16946763 DOI:
10.1364/ao.45.006903]
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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 50 Hz and 30 kHz. Dynamic-strain sensitivity around 1 nepsilon/radicalHz is recorded for thin rubber-film grating transducers.
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