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Browsing Articles by Title
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Good, Michael R.R.; Anderson, Paul R.; Evans, Charles R.
(2013-03-28)
Particle production due to a quantized, massless, minimally coupled scalar eld in two-dimensional at spacetime with an accelerating mirror is investigated, with a focus on the time dependence of the process. We analyze ...
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Russakoff, Arthur; Bubin, Sergiy; Xie, Xinhua; Erattupuzha, Sonia; Kitzler, Markus; Varga, K´alm´an
(2015)
The alignment-dependent ionization of acetylene and ethylene in short laser pulses is investigated in the framework of the time-dependent density-functional theory coupled with Ehrenfest dynamics. The molecular alignment ...
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Baris Bagci, G.; Oikonomou, Th.
(2013)
It is often stated that heat bathswith finite degrees of freedom i.e., finite baths, are sources of Tsallis distributions for classical Hamiltonian systems. By using well-known fundamental statistical mechanics expressions, ...
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Shena, J.; Hizanidis, J.; Kovanis, V.; Tsironis, G.P.
(Nature Research, 2017-02)
Semiconductor laser arrays have been investigated experimentally and theoretically from the viewpoint of temporal and spatial coherence for the past forty years. In this work, we are focusing on a rather novel complex ...
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Bubin, Sergiy; Formanek, Martin; Adamowicz, Ludwik
(Chemical Physics Letters, 2016-03-01)
Abstract Complex explicitly correlated one-center all-particle Gaussian functions (CECGs) are tested as basis functions for molecular non-Born–Oppenheimer (non-BO) calculations. The tests concern the complete spectrum of ...
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Valagiannopoulos, Constantinos
(2016)
One of the main problems when trying to detect
the position and other characteristics of a small inclusion into
lossy earth via external measurements is the inclusion’s poor
scattering response due to attenuation. Hence, ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2003)
Very accurate, rigorous and fully variational, all-particle, non-Born–Oppenheimer calculations of the vibrational spectrum of the H2 molecule have been performed. Very high accuracy has been achieved by expanding the wave ...
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Bubin, Sergiy; Stanke, Monika; Adamowicz, Ludwik
(2011)
We recently presented very accurate calculations of the fundamental vibrational frequency of the 7LiH+ and 3He4He+ ions [Stanke et al., Phys. Rev. A 79, 060501(R) (2009)] performed without the Born–Oppenheimer approximation ...
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Boardman, A D; Alberucci, A; Assanto, G; Grimalsky, V V; Kibler, B; McNiff, J; Nefedov, I S; Rapoport, Yu G; Valagiannopoulos, Constantinos
(Nanotechnology, 2017-10-20)
The topics here deal with some current progress in electromagnetic wave propagation in a family of substances known as metamaterials. To begin with, it is discussed how a pulse can develop a leading edge that steepens and ...
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PAPADIMOPOULOS, ATHANASIOS N.; KANTARTZIS, NIKOLAOS V.; TSITSAS, NIKOLAOS L.; Valagiannopoulos, Constantinos
(Optical Society of America, 2017-12-08)
Color-selective absorption of light is a very significant operation used in numerous applications, from photonic sensing and switching to optical signal modulation and energy harnessing. We demonstrate angle-insensitive ...
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Kolker, Dmitri; Kostyukova, N.; Boyko, A.; Badikov, V.; Badikov, D.; Shadrintseva, A.; Tretyakova, N.; Zenov, K.; Karapuzikov, A.; Zondy, Jean-Jacques
(IOP Publishing, 2018)
We report on the first BaGa4Se7 nanosecond optical parametric oscillator pumped by Q-switched Nd:YLiF4 laser at 1053 nm. The oscillator exhibits a pump threshold energy as low as 0.25 mJ. Mid-infrared (MIR) idler wave ...
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Gangaraj, S Ali Hassani; Monticone, Francesco; Valagiannopoulos, Constantinos
(Nanomaterials and Nanotechnology, 2018-09)
Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials
have been the subject of intense efforts in the past couple of decades. In this article, we ...