University of Nevada, Reno
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Browsing Physics by Title
Now showing items 49-68 of 123
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High-contrast laser acceleration of relativistic electrons in solid cone-wire targets
(2015)The consequences of small scale-length precursor plasmas on high-intensity laser-driven relativistic electrons are studied via experiments and simulations. Longer scale-length plasmas are shown to dramatically increase the ... -
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Hyperfine-induced quadrupole moments of alkali-metal-atom ground states and their implications for atomic clocks
(2016)Spherically symmetric ground states of alkali-metal atoms do not posses electric quadrupole moments. However, the hyperfine interaction between nuclear moments and atomic electrons distorts the spherical symmetry of ... -
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Imaging the He-2 quantum halo state using a free electron laser
(2016)Quantum tunneling is a ubiquitous phenomenon in nature and crucial for many technological applications. It allows quantum particles to reach regions in space which are energetically not accessible according to classical ... -
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Imaging the square of the correlated two-electron wave function of a hydrogen molecule
(2017)The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation ... -
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Imaging the square of the correlated two-electron wave function of a hydrogen molecule (vol 8, 2018)
(2018)The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation ... -
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Implementation of a Faraday rotation diagnostic at the OMEGA laser facility
(2018)Magnetic field measurements in turbulent plasmas are often difficult to perform. Here we show that for > kG magnetic fields, a time-resolved Faraday rotation measurement can be made at the OMEGA laser facility. This ... -
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Implementation of a Faraday rotation diagnostic at the OMEGA laser facility
(2018)Magnetic field measurements in turbulent plasmas are often difficult to perform. Here we show that for > kG magnetic fields, a time-resolved Faraday rotation measurement can be made at the OMEGA laser facility. This ... -
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Influence of Xe and Kr impurities on x-ray yield from debris-free plasma x-ray sources with an Ar supersonic gas jet irradiated by femtosecond near-infrared-wavelength laser pulses
(2016)Many aspects of physical phenomena occurring when an intense laser pulse with subpicosecond duration and an intensity of 10(18)-10(19)W/cm(2) heats an underdense plasma in a supersonic clustered gas jet are studied to ... -
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Investigation of Acute Pulmonary Deficits Associated with Biomass Fuel Cookstove Emissions in Rural Bangladesh
(2017)The use of solid biomass fuels in cookstoves has been associated with chronic health impacts that disproportionately affect women worldwide. Solid fuel stoves that use wood, plant matter, and cow dung are commonly used for ... -
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Investigation of wire-array Z-pinches by laser probing diagnostics
(2019)Laser diagnostics provides powerful tools for the investigation of dense Z-pinches. In this paper, wire-array Z-pinches are investigated at the 1 MA Zebra generator using laser diagnostics at different wavelengths coupled ... -
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Ion Dynamics Effect on Stark-Broadened Line Shapes: A Cross-Comparison of Various Models
(7/4/2014)Modeling the Stark broadening of spectral lines in plasmas is a complex problem. The problem has a long history, since it plays a crucial role in the interpretation of the observed spectral lines in laboratories and ... -
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Ion modes in dense ionized plasmas through nonadiabatic molecular dynamics
(American Physical Society, 2020-10-27)We perform nonadiabatic simulations of warm dense aluminum based on the electron-force field (EFF) variant of wave-packet molecular dynamics. Comparison of the static ion-ion structure factor with density functional theory ... -
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Ionization potentials of superheavy elements No, Lr, and Rf and their ions
(2016)We predict ionization potentials of superheavy elements No, Lr, and Rf and their ions using a relativistic hybrid method that combines configuration interaction (CI) with the linearized coupled-cluster approach. Extensive ... -
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Kinetic modeling of x-ray laser-driven solid Al plasmas via particle-in-cell simulation
(2017)Solid-density plasmas driven by intense x-ray free-electron laser (XFEL) radiation are seeded by sources of nonthermal photoelectrons and Auger electrons that ionize and heat the target via collisions. Simulation codes ... -
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Laboratory measurements of resistivity in warm dense plasmas relevant to the microphysics of brown dwarfs
(2015)Since the observation of the first brown dwarf in 1995, numerous studies have led to a better understanding of the structures of these objects. Here we present a method for studying material resistivity in warm dense plasmas ... -
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Levitated optomechanics with a fiber Fabry-Perot interferometer
(2018)In recent years, quantum phenomena have been experimentally demonstrated on variety of optomechanical systems ranging from micro-oscillators to photonic crystals. Since single photon couplings are quite small, most ... -
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Lifetimes of bound excited states of Pt-
(2017)Measurements of the radiative lifetimes of the two excited states of the platinum anion Pt- are presented. Pt- ions stored in the cryogenic ion storage ring DESIREE were photodetached at different photon wavelengths and ... -
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Longitudinal Spin Relaxation of Optically Pumped Rubidium Atoms in Solid Parahydrogen
(2016)We have grown crystals of solid parahydrogen using a single closed-cycle cryostat. We have doped the crystals with rubidium atoms at densities on the order of 1017 cm-(3) and used optical pumping to polarize the spin state ... -
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Magic wavelengths, matrix elements, polarizabilities, and lifetimes of Cs
(2016)Motivated by recent interest in their applications, we report a systematic study of Cs atomic properties calculated by a high-precision relativistic all-order method. Excitation energies, reduced matrix elements, transition ... -
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Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states
(2018)Fast isochoric heating of a pre-compressed plasma core with a high-intensity short-pulse laser is an attractive and alternative approach to create ultra-high-energy-density states like those found in inertial confinement ...
