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  1. Article

    J-complexes of retinol formed within the nanoparticles prepared from microemulsions

    C. Destrée, F. Debuigne, S. George, B. Champagne… in Colloid and Polymer Science (2008)

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    Article

    J-complexes of retinol formed within the nanoparticles prepared from microemulsions

    Retinol nanoparticles have been obtained by direct precipitation of retinol in the inner water cores of AOT/heptane/water microemulsions. The retinol dissolved in chloroform was injected into the microemulsion...

    C. Destrée, S. George, B. Champagne, M. Guillaume… in Colloid and Polymer Science (2008)

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    Article

    Quantum-chemistry simulations of second-harmonic and sum-frequency generation of organic layers

    By using quantum-chemistry approaches, the second-order nonlinear optical responses of molecules and two-dimensional molecular arrays containing the p-nitroaniline chromophore are evaluated in order to highlig...

    E. Botek, B. Champagne in Applied Physics B (2002)

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    Chapter

    Polymethineimine Chains as New Materials Presenting Large First Hyperpolarizability

    The longitudinal first hyperpolarizability (β) of polymethineimine oligomers of increasing size has been evaluated by using a wide panel of ab initio and semi-empirical methods. The specific evolution with chain ...

    D. Jacquemin, B. Champagne in Nonlinear Optics for the Information Society (2001)

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    Chapter

    Vibrational First and Second Hyperpolarizability of H-C≡N

    The vibrational first and second hyperpolarizability of hydrogen cyanide has been computed ab initio at the RHF and MP2 levels with inclusion of the first-order anharmonicity contributions for the most common NLO...

    O. Quinet, B. Champagne in Nonlinear Optics for the Information Society (2001)

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    Chapter

    Vibrational First Hyperpolarizability of Methane and its Fluorinated Analogs

    The vibrational first hyperpolarizability of methane and its fluorinated analogs has been computed ab initio at the Hartree-Fock and Møller-Plesset second-order levels of approximation by adopting the perturbatio...

    Q. Quinet, B. Champagne in New Trends in Quantum Systems in Chemistry and Physics (2001)

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    Article

    Regional localization of the rat genes encoding the cAMP-specific phosphodiesterases 3 (Pde4d) and 4 (Pde4b) and the tyrosinase-related protein 1 (Tyrp1)

    F. Tissir, B. Champagne, K. Klinga-Levan, G. Levan, J. Szpirer… in Mammalian Genome (1996)

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    Chapter and Conference Paper

    Modern quantum mechanical techniques and computations on the electronic structure of polymers

    Some aspects of ab initio computations on the electronic structure of polymers are discussed. The periodic model of the polymer chain is introduced, together with the principles of LCAO band structure calculat...

    J. M. André, B. Champagne, J. Delhalle… in High-Performance Computing and Networking (1994)

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    Article

    Laser processing of plasma-sprayed R-Ba-Cu-O coatings

    Thick Y-Ba-Cu-O and Er-Ba-Cu-O coatings were deposited by plasma spraying onto nickel substrates. These plasma-sprayed coatings were laser melted to modify their microstructures. The effects of primary process...

    B. Arsenault, B. Champagne, D. Dubé, P. Lambert… in Journal of Thermal Spray Technology (1993)

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    Article

    Interactions between nickel and melted R-Ba-Cu-O (R=Y, Nd)

    R-Ba-Cu-O (R = Y and Nd) compounds were melted and crystallized in nickel crucibles. The interaction between these materials was studied by examining the physical aspect of the nickel interface. Interaction me...

    D. Dubé, P. Lambert, B. Champagne in Journal of Materials Science (1992)

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    Article

    Interactions between nickel and melted R-Ba-Cu-O (R=Y, Nd)

    R-Ba-Cu-O (R = Y and Nd) compounds were melted and crystallized in nickel crucibles. The interaction between these materials was studied by examining the physical aspect of the nickel interface. Interaction me...

    D. Dubé, P. Lambert, B. Champagne in Journal of Materials Science (1992)

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    Article

    Microstructural, electrical and magnetic properties of NdBa2Cu3O7−δ prepared from BaO2

    NdBa2Cu3O7−δ was synthesized in oxygen from a stoichiometric mixture of Nd2O3, BaO2 and CuO between 890 and 1070 ‡C. The resulting material was composed of small crystals of NdBa2Cu3O7−δ (2 to 10 Μm) and of BaCuO

    L. Parent, C. Moreau, B. Champagne in Journal of Materials Science (1991)

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    Chapter

    Towards the Calculations of Polarizabilities of Infinite Polymeric Chains

    In this paper, we describe uncoupled Hartree-Fock calculations (or S.O.S. calculations) of the asymptotic limit of the electric polarizability per unit cell of infinite polymeric chains. We present results obt...

    J. M. Andre, B. Champagne in Organic Molecules for Nonlinear Optics and Photonics (1991)

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    Article

    One-Step Synthesis and Densification of Bulk YBa2Cu4O8/Ni Composite Superconductors

    C. Gélinas, B. Champagne in MRS Online Proceedings Library (1989)

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    Chapter

    Deposition of TlBaCaCuO Thin Films

    For the high TC system of TlBaCaCuO1, it is specially interesting to investigate the formation of films from sputtered BaCaCuO2. In such experiments, a Tl-free target of BaCaCuO is used for the film deposition an...

    C. X. Qiu, I. Shih, C. Moreau, B. Champagne… in Science and Technology of Thin Film Superc… (1989)