The junction-voltage temperature relationship of a laser diode is used to determine the temperature of the device in the range -20 to 120 degrees C. We consider changes that occur to this relationship when the diode is ...
Textured silicon surfaces are widely used in manufacturing of solar cells due to increasing the light absorption probability and also the antireflection properties. However, these Si surfaces have a high density of surface ...
Chung, Kwok; Sanagavarapu, Ananda(John Wiley & Sons Inc, 2003)
In this paper, we investigate the effect of the offset patch and layer misalignments on the broadband characteristics of a two-layer, electromagnetically coupled, stacked patch antenna with airgap at the X-band. Linear and ...
Hoft, Rainer; Cortie, Michael; Ford, Mike(Taylor & Francis Ltd., 2007)
We perform density functional theory and non-equilibrium Green's function calculations of the conductance of a gold wire and a 1,4-phenylenedimethanethiol (XYL) molecule adsorbed between Au(111) electrodes using the ...
We perform density functional theory (DFT) calculations of the stretching of Au(111)?X?Au(111) molecular junctions where X is either a thiyl or ethynyl biradical. The equilibrium geometries for the radicals adsorbing on ...
Adsorption of methanethiol onto the three, high symmetry gold surfaces has been studied at the density functional level using a linear combination of atomic orbitals approach. In all three cases the bond energy between the ...
Mcbean, Katie; Drouin, Dominique; Phillips, Matt(Cambridge University Press, 2006)
Zinc oxide (ZnO) is a wide band-gap (3.37 eV) semiconductor with a large exciton binding energy of 60 meV. Because of these properties, ZnO is a good candidate for a wide range of applications, including varistors, phosphors ...
We summarize the results of our comprehensive analytical and numerical studies of the effects of polarization on the Anderson localization of classical waves in one-dimensional random stacks. We consider homogeneous stacks ...
ABSTRACT The uniaxial stress dependence of the band structure and the exciton-polariton transitions in wurtzite ZnO is thoroughly studied using modern first-principles calculations based on the HSE+G0W0 approach, k p ...
We prove that sufficiently many copies of a bipartite entangled pure state can always be transformed into some copies of another one with certainty by local quantum operations and classical communication. The efficiency ...
We present computational techniques to compute in an efficient way optical forces on arbitrary nanoobjects using the coupled dipole method. We show how the time of computation can be reduced by several orders of magnitude ...
We use two-dimensional simulations to study the design of tapers to provide efficient, low reflection coupling between a waveguide in a two-dimensional photonic crystal (PC) and free space. We find that, largely independent ...
White, Thomas; Botten, Lindsay; De Sterke, C; Dossou, Kokou; Mcphedran, Ross(Optical Society of America, 2008)
We consider the coupling into a slow mode that appears near an inflection point in the band structure of a photonic crystal waveguide. Remarkably, the coupling into this slow mode, which has a group index ng>1000, can be ...
We study light coupling between two photonic crystal wave-guides, one of which supports slow light. We show theoretically that a short photonic crystal waveguide between the two that need to be coupled, can lead to a ...
A mathematical model has been constructed to describe elastic waves propagating in a two?dimensional solid containing a doubly periodic parallelogram array of circular holes. A multipole expansion method is employed which ...