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Pulsed laser characterization of multicomponent polymer acoustic and mechanical properties in the sub-GHz regime

  • G. Saini (a1), T. Pezeril (a2), D.H. Torchinsky (a3), J. Yoon (a1), S.E. Kooi (a4), E.L. Thomas (a1) and K.A. Nelson (a2)...
Abstract

We investigated the acoustic properties in the sub-GHz frequency regime of a multilayer system comprising alternating 100-nm scale TiO2/poly(methyl methacrylate) (PMMA) layers through a laser photoacoustic method, impulsive stimulated thermal scattering (ISTS). The acoustic dispersion curves were determined, and the mechanical properties were extracted from the experimental results.

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a) Address all correspondence to this author. e-mail: kanelson@mit.edu
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1 F. Mammeri , E. Le Bourhis , L. Rozes , and C. Sanchez : Mechanical properties of hybrid organic-inorganic materials. J. Mater. Chem. 15, 3787 (2005).

3 J. Yoon , W. Lee , J.M. Caruge , M. Bawendi , E.L. Thomas , S. Kooi , and P. Prasad : Defect-mode mirrorless lasing in dye-doped organic/inorganic hybrid one-dimensional photonic crystal. Appl. Phys. Lett. 88, 091202 (2006).

4 T. Gorishnyy , C.K. Ullal , M. Maldovan , G. Fytas , and E.L. Thomas : Hypersonic phononic crystals. Phys. Rev. Lett. 94, 115501/1 (2005).

5 G. Lu and T.X. Yu : Energy Absorption of Structures and Materials (Cambridge, Woodhead Pub., Boca Raton, FL, CRC Press, 2003).

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13 A.R. Duggal , J.A. Rogers , K.A. Nelson , and M. Rothschild : Real-time characterization of acoustic modes of polyimide thin film coatings using impulsive stimulated thermal light scattering. Appl. Phys. Lett. 60, 692 (1992).

15 W.P. Minnear and R.C. Bradt : Elastic properties of polycrystalline TiO2− x . J. Am. Ceram. Soc. 60, 458 (1977).

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Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
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