Browsing School of Physics by Title
Now showing items 717-736 of 2107
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General approach to the analysis of plasmonic structures using spectroscopic ellipsometry
(2013)In this article a route to analyze the full optical response of plasmonic structures is developed. First, the simple case of an anisotropic thin plasmonic layer supported on a transparent substrate is analyzed by ... -
A general strategy for hybrid thin film fabrication and transfer onto arbitrary substrates
(2014)The development of thin film-based structures/devices often requires thin films to be transferred onto arbitrary substrates/surfaces. Controllable and non-destructive transfer method, although highly desired, remains ... -
Generalizing solubility parameter theory to apply to one- and two-dimensional solutes and to incorporate dipolar interactions
(2013)Hildebrand and Hansen solubility parameters are commonly used to identify suitable solvents for the dispersion or dissolution of a range of solutes, from small molecules to graphene. This practice is based on a number of ... -
Generation of a radially polarized light beam using internal conical diffraction
(2011)Using a combination of internal conical diffraction and Mach-Zehnder interferometry we have theoretically and experimentally demonstrated an efficient new technique for the conversion of a linearly polarized Gaussian laser ... -
Generation of continuously tunable fractional optical orbital angular momentum using internal conical diffraction
(2010)When a left-circularly polarised Gaussian light beam, which has spin angular momentum (SAM) J sp = ? ? = 1 ? per photon, is incident along one of the optic axes of a slab of biaxial crystal it undergoes internal ... -
Generation of continuously tuneable fractional optical orbital angular momentum using internal conical diffraction
(2010)Abstract: When a left-circularly polarised Gaussian light beam, which has spin angular momentum (SAM) Jsp = ?? = 1? per photon, is incident along one of the optic axes of a slab of biaxial crystal it undergoes internal ... -
Generation, characterisation and solidification of crystalline microfoams
(Trinity College (Dublin, Ireland). School of Physics, 2008)This study is centered around the spontaneous ordering of equally sized microbubbles on top of a liquid pool, forming wet crystalline microfoams. This type of ordering was firstly observed by Bragg and Nye in 1947 and only ... -
Genetic algorithm optimization of high order surface etched grating tunable laser array
(2020)A genetic algorithm is developed with a view to optimizing surface-etched grating tunable lasers over a large optimization space comprised of several variables. Using this approach, a new iteration of slotted lasers arrays ... -
Geometric Constraints in the Growth of Nanotube Templated Polymer Monolayers
(2004)We present a simple and general model that describes the ordered assembly of polymer strands on nanotube surfaces. Energetically favorable coiling angles are identified based on geometric constraints that limit the maximum ... -
Giant energy product in nanostructured two-phase magnets
(American Physical Society, 1993)Exchange hardening of nanostructured two-phase systems composed of an aligned hard phase and a soft phase with high magnetization is investigated using an approach which yields analytic nucleation fields from the micromagnetic ... -
Giant magnetic moment in epitaxial Fe3O4 thin films on MgO (100)
(2008)Magnetization studies on well characterized epitaxial magnetite (Fe3O4) thin films grown on MgO(100) show that the ultrathin films (<5?nm thickness) are ferromagnetic and their magnetic moments are much greater than those ... -
Giant magnetoresistive effects in a single element magnetic thin film.
(American Physical Society, 1996)By exploiting the simplicity of a novel transport measurement on a ferromagnetic striped domain structure in a thin film of cobalt, we report the first direct observation of ferromagnetic domain wall scattering and what ... -
Giant Resistance Change across the Phase Transition in Spin-Crossover Molecules
(2012)The electronic origin of a large resistance change in nanoscale junctions incorporating spin-crossover molecules is demonstrated theoretically by using a combination of density functional theory and the nonequilibrium ... -
Giant spontaneous Hall effect in zero-moment Mn2Ru x Ga
(2015)Spin-dependent transport properties of Mn2Ru x Ga thin-films are studied as function of the Ru concentration and the substrate-induced strain. The large spontaneous Hall angle of 7.7% twenty times bigger than in other 3d ... -
Giant transverse hysteresis is an asperomagnet
(American Physical Society, 1990)Comparison of the magnetoresistance of amorphous thin films of Tb80U20 and the nonmagnetic analog Y80U20 reveals hysteresis for the terbium alloy, which extends to fields in excess of 8 T at 4.2 K. Hysteresis is found in ... -
Giant tunneling magnetoresistance with electron beam evaporated MgO barrier and CoFeB electrodes
(2010)Electron-beam (EB) evaporated MgO grows with (001) texture on amorphous CoFeB when the deposition rate is kept below 5 pm/s. Magnetic tunnel junctions (MTJs) fabricated using this method exhibit similar to 240% magnetoresistance ... -
Gold electrodeposition in organic media
(2011)Organic species are easily adsorbed onto metal electrodes, due to the high surface energy. This principle is widely employed in electrodeposition to obtain grains with a given shape and size. Electrodeposition in organic ... -
Graphene Based Membranes for Osmosis Applications
(Trinity College Dublin. School of Physics. Discipline of Physics, 2020)With the discovery of two-dimensional hexagonal graphene (single layer of graphite), a tremendous interest has grown due its remarkable properties. Apart from all other properties, its superior thickness (one-atom thick) ... -
Graphene oxide covalently functionalized with zinc phthalocyanine for broadband optical limiting
(Elsevier, 2011)A soluble graphene oxide (GO) covalently functionalized with zinc phthalocyanine (PcZn), GO-PcZn, was synthesized by an amidation reaction. The formation of an amido bond between PcZn and GO has been confirmed by x-ray ...