Search Results - "Gomopoulos, N"

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  1. 1
    One-Dimensional Hypersonic Phononic Crystals

    One-Dimensional Hypersonic Phononic Crystals by Gomopoulos, N, Maschke, D, Koh, C. Y, Thomas, E. L, Tremel, W, Butt, H.-J, Fytas, G

    Published in Nano letters (10-03-2010)
    “…We report experimental observation of a normal incidence phononic band gap in one-dimensional periodic (SiO2/poly(methyl methacrylate)) multilayer film at…”
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  2. 2
    Out-of-Plane Longitudinal Elastic Modulus of Supported Polymer Thin Films

    Out-of-Plane Longitudinal Elastic Modulus of Supported Polymer Thin Films by Gomopoulos, N, Cheng, W, Efremov, M, Nealey, P. F, Fytas, G

    Published in Macromolecules (22-09-2009)
    “…We employ Brillouin light scattering to measure the longitudinal modulus in supported thin polymer films in the direction normal to the film surface. In this…”
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  3. 3
    Nondestructive Probing of Mechanical Anisotropy in Polyimide Films on Nanoscale

    Nondestructive Probing of Mechanical Anisotropy in Polyimide Films on Nanoscale by Gomopoulos, N, Saini, G, Efremov, M, Nealey, P. F, Nelson, K, Fytas, G

    Published in Macromolecules (09-02-2010)
    “…The present work demonstrates the first application of Brillouin light scattering to probe elastic excitations in highly anisotropic polymer thin films. Both…”
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  4. 4
    Does Brillouin light scattering probe the primary glass transition process at temperatures well above glass transition?

    Does Brillouin light scattering probe the primary glass transition process at temperatures well above glass transition? by Voudouris, P, Gomopoulos, N, Le Grand, A, Hadjichristidis, N, Floudas, G, Ediger, M D, Fytas, G

    Published in The Journal of chemical physics (21-02-2010)
    “…The primary alpha-relaxation time (tau(alpha)) for molecular and polymeric glass formers probed by dielectric spectroscopy and two light scattering techniques…”
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  5. 5
    Phonon Dispersion and Nanomechanical Properties of Periodic 1D Multilayer Polymer Films

    Phonon Dispersion and Nanomechanical Properties of Periodic 1D Multilayer Polymer Films by Cheng, W, Gomopoulos, N, Fytas, G, Gorishnyy, T, Walish, J, Thomas, E. L, Hiltner, A, Baer, E

    Published in Nano letters (01-05-2008)
    “…We report on the first systematic study of phonon propagation in nanostructured composite polymer multilayer films as a function of periodicity and composition…”
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  6. 6
    Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate

    Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate by Mpoukouvalas, K., Gomopoulos, N., Floudas, G., Herrmann, C., Hanewald, A., Best, A.

    Published in Polymer (Guilford) (20-09-2006)
    “…The segmental dynamics of bisphenol-A-polycarbonate (BPA-PC) are studied as a function of temperature (in the range from 143 to 473 K) and pressure (0.1–300…”
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  7. 7
    Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate : Structure and dynamics of complex polymeric materials

    Effect of pressure on the segmental dynamics of bisphenol-A-polycarbonate : Structure and dynamics of complex polymeric materials by MPOUKOUVALAS, K, GOMOPOULOS, N, FLOUDAS, G, HERRMANN, C, HANEWALD, A, BEST, A

    Published in Polymer (Guilford) (2006)
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