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Now showing items 102-121 of 213

Laser-induced electron emission from nanostructures: A first-principles study

Driscoll, Joseph A.; Bubin, Sergiy; Varga, Kalman (2011)

Time-dependent density functional theory simulation of laser-induced ionization is presented. Various test systems including a small wire-like molecule, C12H14, as well as carbon nanotubes with varying diameter are studied. ...
Laser thermoelastic generation in metals above the melt threshold

Every, A. G.; Utegulov, Z. N.; Veres, I. A. (2013)

An approach is presented for calculating thermoelastic generation of ultrasound in a metal plate exposed to nanosecond pulsed laser heating, sufficient to cause melting but not ablation. Detailed consideration is given to ...
Laser thermoelastic generation in metals above the melt threshold

Every, A. G.; Utegulov, Zhandos; Veres, I. A. (Journal of Applied Physics, 2013-11)

An approach is presented for calculating thermoelastic generation of ultrasound in a metal plate exposed to nanosecond pulsed laser heating, sufficient to cause melting but not ablation. Detailed consideration is given to ...
Lateral radiative forces exerted by evanescent fields along a hyperbolic metamaterial slab

Nefedov, I. S.; Shalin, A. S.; Valagiannopoulos, Constantinos (Journal of Physics, 2018)

We show and investigate the optical forces acting on a particle in the vicinity of a planar waveguide which is lled with hyperbolic material and supports propagation across its plane (two-dimensional). The anisotropy ...
LCDG4 and DigiSim – Simulation activities at NICADD/NIU

Beznosko, Dmitriy; Blazey, G.; Chakraborty, D.; Dyshkant, A.; Francis, K.; Kubik, D.; Lima, J.G.R.; McCormick, J.; McIntosh, R.; Rykalin, V.; Zutshi, V. (2005)

We present two software packages developed to support detector R&D studies for the International Linear Collider. LCDG4 is a full-detector simulator that provides energy deposits from particles traversing the sensitive ...
LiGaSe2 optical parametric oscillator pumped by a Q-switched Nd:YAG laser

Zondy, Jean-Jacques; Vedenyapin, V.; Boyko, A.; Kolker, Dmitri; Isaenko, L.; Lobanov, S.; Kostyukova, N.; Yelisseyev, A.; Petrov, V. (Laser Physics Letters, 2016-01-01)

Optical parametric oscillation is demonstrated for the first time with the chalcogenide nonlinear crystal LiGaSe2 pumped by a nanosecond Nd:YAG laser. Angle tuning provides coverage of the 4.8–9.9 μm spectral range in the ...
Light Pollution Intensity Monitoring with Novel Multi-pixel Silicon Photon Detectors

Beznosko, Dmitriy; Erpalov, A.; Rykalin, V.; Savinykh, V.; Yakovlev, A. (2010)

Nowadays, numerous fields such as Environmental sciences, High Energy Physics, medical imaging devices, portable radiation detectors, portable light intensity monitors etc., require a robust, miniature, reliable and ...
Line intensity measurements of methane’s ν3-band using a cw-OPO

Zondy, Jean-Jacques; Souza, Marco Polo Moreno de; Cadoret, Malo; Jahjah, Mohammad; Nguyen, Linh; Cruz, Flavio C. (Applied Physics B: Lasers and Optics, 2014)

We report on absolute line strength measurements of P(1), R(0) and R(1) singlet lines in the 3:3 μm ν3 (C–H stretching) band of methane 12CH4 at referencetemperature T = 296 K. Line strength measurements are performed at ...
Liquid scintillator composition optimization for use in ultra-high energy cosmic ray detector systems

Beznosko, Dmitriy; Batyrkhanov, Ayan; Iakovlev, Alexander; Yelshibekov, Khalykbek (ISVHECRI 2016, 2016)

The Horizon-T (HT) detector system and the currently under R&D HT-KZ detector system are designed for the detection of Extensive Air Showers (EAS) with energies above _1016 eV (_1017 eV for HT-KZ). The main challenges ...
Lithium CPS based on carboxylic fabric with CNT synthesized on its fibers’ surface

Zaurbekova, Z.; Chikhray, Y.; Ponkratov, Y.; Baklanov, V.; Abdullin, K.; Kulsartov, T.; Gordienko, Y.; Tazhibayeva, I.; Skakov, M.; Mukanova, A. (Materials Today: Proceedings, 2017-01-01)

Abstract The paper describes a technique of CNT synthesis on the fibers of carboxylic fabric. It consists of three operational stages: creation of the experimental facility based on high-temperature quartz flow reactor; ...
Lower Rydberg 2D states of the lithium atom: Finite-nuclear-mass calculations with explicitly correlated Gaussian functions

Sharkey, Keeper L.; Bubin, Sergiy; Adamowicz, Ludwik (2011)

Very accurate variational nonrelativistic calculations are performed for the five lowest Rydberg 2D states (1s2nd1, n = 3, . . . ,7) of the lithium atom (7Li). The finite-nuclear-mass approach is employed and the ...
Lowest 2S Electronic Excitations of the Boron Atom

Bubin, Sergiy; Adamowicz, Ludwik (PHYSICAL REVIEW LETTERS, 2017-01)

A theoretical ab initio approach for calculating bound states of small atoms is developed and implemented. The approach is based on finite-nuclear-mass [non-Born-Oppenheimer (non-BO)] nonrelativistic variational calculations ...
Lowest Excitation Energy of 9Be

Stanke, Monika; Kedziera, Dariusz; Bubin, Sergiy; Adamowicz, Ludwik (2007)

Variational calculations employing explicitly correlated Gaussian functions and explicitly including the nuclear motion [i.e., without assuming the Born-Oppenheimer (BO) approximation] have been performed to determine ...
Lowest vibrational states of 4He3He+: Non-Born-Oppenheimer calculations

Stanke, Monika; Ke¸dziera, Dariusz; Bubin, Sergiy; Molski, Marcin; Adamowicz, Ludwik (2007)

Very accurate quantum mechanical calculations of the first five vibrational states of the 4He3He+ molecular ion are reported. The calculations have been performed explicitly including the coupling of the electronic ...
Magnified imaging based on non-Hermitian nonlocal cylindrical metasurfaces

Savoia, Silvio; Valagiannopoulos, Constantinos; Monticone, Francesco; Castaldi, Giuseppe; Galdi, Vincenzo; Al`u, Andrea (PHYSICAL REVIEW B. American Physical Society, 2017)

We show that a cylindrical lensing system composed of two metasurfaces with suitably tailored non-Hermitian (i.e., with distributed gain and loss) and nonlocal (i.e., spatially dispersive) properties can perform ...
Manipulating polarized light with a planar slab of black phosphorus

Valagiannopoulos, Constantinos; Mattheakis, Marios; Shirodkar, Sharmila N; Kaxiras, Efthimios (Journal of Physics Communications, 2017-11-08)

Wave polarization contains valuable information for electromagnetic signal processing; thus, the ability to manipulate it, can be extremely useful in modeling photonic devices. In this work, we propose designs comprised ...
Matrix elements of N-particle explicitly correlated Gaussian basis functions with complex exponential parameters

Bubin, Sergiy; Adamowicz, Ludwik (2006)

In this work we present analytical expressions for Hamiltonian matrix elements with spherically symmetric, explicitly correlated Gaussian basis functions with complex exponential parameters for an arbitrary number of ...
Measurement of the Inclusive μ Charged Current Cross Section on Carbon in the Near Detector of the T2K Experiment

Beznosko, Dmitriy (2013)

T2K has performed the first measurement of νμ inclusive charged current interactions on carbon at neutrino energies of ∼1 GeV where the measurement is reported as a flux-averaged double differential cross section in muon ...
Mid-infrared tunable, narrow-linewidth difference-frequency laser based on orientation-patterned gallium phosphide

Insero, G.; Clivati, C.; D'Ambrosio, D.; De Natale, P.; Santambrogio, G.; Schunemann, P, G.; Borri, S.; Zondy, Jean-Jacques (IOP Publishing, 2017-01-01)

We report on the first characterization of orientation-patterned gallium phosphide (OP-GaP) crystals used to generate narrow-linewidth, coherent mid-infrared (MIR) radiation at 5.85 μm by difference frequency generation ...
Mirror reflections of a black hole

Good, Michael R. R.; Anderson, Paul R.; Evans, Charles R. (Physical Review D - Particles, Fields, Gravitation and Cosmology, 2016-09-12)

An exact correspondence between a black hole and an accelerating mirror is demonstrated. It is shown that for a massless minimally coupled scalar field, the same Bogolubov coefficients connecting the "in" and "out" states ...