Browsing 02 Physical Sciences by Title

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Browsing 02 Physical Sciences by Title

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  • Wilson, Anna; Akerlind, Gerlese; Francis, Paul; Mckenzie, Jo; Pearce, Darren; Sharma, Manju; Kirkup, Les (Uniserve Science, 2010)
    We report on the initial findings of a study aimed at developing ways to address threshold concepts in the design of undergraduate curricula, involving academics in two disciplines (physics and law) from four Australian ...
  • Ben-Nissan, Besim; Choi, Andy; Bendavid, A (Elsevier Science Sa, 2013)
    Coatings on implants are aimed to achieve some or all of the improvements in abrasion, corrosion resistance, metal ion release protection, increased bioactivity, biocompatibility, and ultimately an improved environment and ...
  • Godlewski, Marek; Yatsunenko, S; Ivanov, V Yu; Drozdowicz-Tomasia, K; Goldys, Ewa; Klar, Peter; Heimbrodt, Wolfram; Phillips, Matt (American Institute of physics, 2007)
    Intra-shell transitions of transition metal and rare earth ions are parity forbidden processes. For Mn2+ ions this is also a spin forbidden process, i.e., light emission should be inefficient. Surprisingly, it has been ...
  • Soule De Bas, Benjamin; Cortie, Michael; Ford, Mike (Institute of Physics Publishing, 2006)
    Molecular dynamics simulations of the thermal behaviour of gold clusters containing 7, 13 and 20 atoms have been performed. Total energies and forces at each step of the simulation are calculated from first principles using ...
  • Maaroof, Abbas; Cortie, Michael; Gentle, Angus; Smith, Geoff (Elsevier, 2007)
    Mesoporous gold sponge has optical properties that can be intermediate between those of metals and insulators with a flat spectral response that is unlike that of bulk gold. Films of different thicknesses were produced and ...
  • Earp, Alan; Smith, Geoff (Institute of Physics Publishing, 2010)
    Anomalous strong resonances in silver and gold nanoporous thin films which conduct are found to arise from isolated metal nano-islands separated from the surrounding percolating metal network by a thin loop of insulator. ...
  • Earp, Alan; Smith, Geoff (Amer Inst Physics, 2010)
    Oxide coated metal nanoparticles buried within a thin metal layer support a surface plasmon resonance. A local dip occurs in spectral reflectance along with a switching off of the film's plasmonic response. Models are ...
  • Prill Sempere, L; Schmidt, Markus; Tyagi, H; Poulton, Christopher; Russell, P (IEEE/LEOS, 2008)
    Metallic nanowire arrays are created by pumping molten metal into the hollow channels of silica glass PCF. Measurements show that, at certain wavelengths, the core-guided light couples to leaky surface plasmon modes on the ...
  • Gelhausen, Olaf; Goldys, Ewa; Phillips, Matt (IOP Publishing, 2003)
    Scanning cathodoluminescence (CL) spectroscopy and imaging were used to study the effect of post-growth processing on the CL efficiency of metal?organic vapour phase epitaxy-grown Mg-doped GaN. In this work, two treatments, ...
  • Gauvin, Ranald; Griffin, Brendan; Nockolds, Clive; Joy, David; Phillips, Matt (Wiley, 2002)
    A simple method is described to determine the effective gas path length when incident electrons scatter in the gas above the specimen. This method is based on the measurement of a characteristic x-ray line emitted from a ...
  • Gardin, Samuele; Bordas, Frederic; Letartre, Xavier; Seasall, Christian; Rahmani, Adel; Bozio, Renato; Viktorovitch, Pierre (Optical Society of America, 2008)
    We present the design, theory and experimental implementation of a low modal volume microlaser based on a line-defect 2D-photonic crystal waveguide. The lateral confinement of low-group velocity modes is controlled by the ...
  • Weily, Andrew; Sanagavarapu, Ananda (Wiley, 2001)
  • Maaroof, Abbas; Cortie, Michael; Harris, Nadine; Wieczorek, Lech (Wiley, 2009)
  • Tsirlin, Anatoly; Kazakov, Vladimir; Kolinko, N (Springer-Verlag, 2003)
    We formulate the problem of finding classes of kinetic dependencies in irreversible thermodynamic and microeconomic systems for which minimal dissipation processes belong to the same type. We show that this problem is an ...
  • Dossou, Kokou; Botten, Lindsay; Asatryan, Ara; Sturmberg, B.; Byrne, Michael; Poulton, Christopher; Mcphedran, Ross; De Sterke, C (Optical Society of America, 2012)
    A finite element-based modal formulation of diffraction of a plane wave by an absorbing photonic crystal slab of arbitrary geometry is developed for photovoltaic applications. The semianalytic approach allows efficient and ...
  • Campbell, Samuel; Botten, Lindsay; Mcphedran, Ross; De Sterke, C (Optical Soc Amer, 2008)
    We consider lamellar gratings made of dielectric or lossy materials used in classical diffraction mounts. We show how the modal diffraction formulation may be generalized to deal with slanted lamellar gratings and illustrate ...
  • Ditchburn, Rj; Smith, Geoff (Iop Publishing Ltd, 1992)
    An effective medium model, capable of explaining both the unusual transmittance characteristics and the pronounced biaxial response observed in obliquely deposited metal and metal-insulator composites, is used to model ...
  • Vahn, Gy; White, Tom; Steel, Michael; De Sterke, C; Dossou, Kokou; Botten, Lindsay (Amer Inst Physics, 2007)
    We derive semianalytic models of two types of photonic crystal resonators by simplifying the Bloch mode scattering matrix method. Essential to the models are two parameters, which are interpreted to be the phase change ...
  • Wilcox, Stuart; Botten, Lindsay; Mcphedran, Ross; Poulton, Christopher; De Sterke, C (American Physical Soc, 2005)
    We present an exact theory for modeling defect modes in two-dimensional photonic crystals having an infinite cladding. The method is based on three key concepts, namely, the use of fictitious sources to modify response ...
  • Kan, Dougal; Asatryan, Ara; Poulton, Christopher; Dossou, Kokou; Botten, Lindsay (Optical Society of America, 2011)
    We extend the fictitious source superposition method in order to model linear defects in photonic woodpiles, and we use the method to model a waveguide that is created by changing either the radius or refractive index of ...