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Browsing Faculty Research Publications (Physics) by Title
Now showing items 14-33 of 41
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(The American Institute of Physics, 1967-02-15)Electron avalanche due to intraband optical absorption is discussed as a mechanism responsible for laser induced damage in certain insulating crystals.
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(American Institute of Physics, 2009-06-18)We report on a novel class of semiconductor metamaterials that employ a strongly anisotropic dielectric function to achieve negative refraction in the midinfrared region of the spectrum, ~8.5–13 μm. We present two type ...
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(American Institute of Physics, 2006-12-26)The authors study perspectives of nanowire metamaterials for negative-refraction waveguides, high-performance polarizers, and polarization-sensitive biosensors. They demonstrate that the behavior of these composites is ...
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(American Physical Society, 2012-06-04)Cross sections for radiative capture of neutrons have been measured by the activation technique for stable isotopes of Ba with mass numbers 130, 132, 134, 136, and 138. From separate irradiations using thermal and epithe ...
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(American Physical Society, 2012-09-27)The activation method has been used to measure the cross sections for radiative capture of neutrons by all isotopes of stable Ce (mass numbers 136, 138, 140, and 142). Both the thermal cross sections and the resonance in ...
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Neutron capture cross sections of 184,189,190,192Os and the decays of 185Os,190Osm, 191Os, and 193Os (American Physical Society, 2012-04-23)Radiative neutron capture cross sections have been measured for the stable isotopes of natural Os with mass numbers 184, 189, 190, and 192 by observing radioactive decays of the activation products following neutron irra ...
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(Nature Publishing Group, 2011-12-11)Topological defects, such as monopoles, vortex lines or domain walls, mark locations where disparate choices of a broken-symmetry vacuum elsewhere in the system lead to irreconcilable differences(1,2). They are energetic ...
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(American Institute of Physics, 2007-05-08)The authors analyze electromagnetic modes in multilayered nanocomposites and demonstrate that the response of a majority of realistic layered structures is strongly affected by the nonlocal effects originating from str ...
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(American Institute of Physics, 2005-11-30)We analyze the performance of a planar lens based on realistic negative index material in a generalized geometry. We demonstrate that the conventional superlens design (where the lens is centered between the object and ...
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(American Institute of Physics, 2009-01-09)We report on the effect of various guest molecules added to a functionalized anthradithiophene (ADT) host on photoexcited charge carrier dynamics in solution-deposited thin films, from ~100 ps to >100 μs after photoexc ...
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(American Institute of Physics, 2003-04-28)BaCuQF (Q=S,Se) materials, candidate transparent p-type conductors, were prepared by solid-state reaction, and their bulk electrical and optical properties were evaluated. The room-temperature Seebeck coefficient and e ...
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(Nature Publishing Group, 2012-09-13)We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiaba ...
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(American Institute of Physics, 1999-10-18)We demonstrate color shifting from the yellow to the red in the electroluminescence from (ZnGa)S:Mn films. We observe threshold voltages down to about 35 V, extremely low for such devices. We discuss the materials char ...
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(IOP Publishing Ltd and Deutsche Physikalische Gesellschaft, 2012-08-10)A state selected at random from the Hilbert space of a many-body system is overwhelmingly likely to exhibit highly non-classical correlations. For these typical states, half of the environment must be measured by an obse ...
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(American Physical Society, 2012-02)The electronic structure of the oxychalcogenides LaCuOSe and BiCuOSe has been studied using O K-edge x-ray emission spectroscopy, x-ray absorption spectroscopy, and density functional theory, in order to examine the effe ...
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Seed Cone Anatomy of Cheirolepidiaceae (Coniferales): Reinterpreting Pararaucaria patagonica Wieland (Botanical Society of America, Inc., 2012-06-01)Premise of the study: Seed cone morphology and anatomy reflect some of the most important changes in the phylogeny and evolutionary biology of conifers. Reexamination of the enigmatic Jurassic seed cone Pararaucaria pata ...
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(Royal Society of Chemistry, 2012-06-26)Acenes larger than pentacene are predicted to possess enticing electronic properties, but are insoluble and prone to rapid decomposition. Utilizing a combination of functionalization strategies, we present stable, soluti ...
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(American Physical Society, 2011-12)We report on physical mechanisms behind the temperature-dependent optical absorption, photoluminescence (PL), and photoconductivity in spin-coated films of a functionalized anthradithiophene (ADT) derivative, ADT-triethy ...
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(American Physical Society, 2012-06-29)Interactions of few-cycle terahertz pulses with the induced optical polarization in a quantum-well microcavity reveal that the lower and higher exciton-polariton modes together with the optically forbidden 2p-exciton sta ...
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Terahertz imaging of inhomogeneous electrodynamics in single-layer graphene embedded in dielectrics (American Institute of Physics, 2012-08-29)We investigate electron transport properties in large-area, single-layer graphene embedded in dielectric media, using free-space terahertz (THz) imaging and time-domain spectroscopy. Sandwiched between a thin polymethyl ...
Now showing items 14-33 of 41
