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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 10 — Nov. 8, 2013

Polydimethylsiloxane thin film characterization using all-optical photoacoustic mechanism

Xiaotian Zou, Nan Wu, Ye Tian, Yang Zhang, and Xingwei Wang  »View Author Affiliations

Applied Optics, Vol. 52, Issue 25, pp. 6239-6244 (2013)

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This paper presents a nondestructive ultrasound testing method for characterization of the resonant frequencies of polydimethylsiloxane (PDMS) thin film by using a miniature fiber optic photoacoustic (PA) probe. The PA probe was fabricated with an optical fiber and a synthesized gold nanocomposite. During the experiment, a cured PDMS thin film with a thickness of 220 μm was immersed into a water medium using a custom-designed holder to clamp the film. An acoustic pulse was generated by the PA probe and propagated through the water media to excite the fixed film. A fiber optic pressure sensor based on the Fabry–Perot principle was used to collect the excited acoustic signals on the other side of the film. The acquired response of the acoustic pulse was used to compute the resonant frequencies of the PDMS thin film based on a deconvolution method.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(110.5125) Imaging systems : Photoacoustics

ToC Category:
Imaging Systems

Original Manuscript: May 22, 2013
Manuscript Accepted: July 24, 2013
Published: August 26, 2013

Virtual Issues
Vol. 8, Iss. 10 Virtual Journal for Biomedical Optics

Xiaotian Zou, Nan Wu, Ye Tian, Yang Zhang, and Xingwei Wang, "Polydimethylsiloxane thin film characterization using all-optical photoacoustic mechanism," Appl. Opt. 52, 6239-6244 (2013)

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