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Browsing Articles by Title
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Valagiannopoulos, Constantinos
(Metamaterials, 2018)
Structural boundaries, materials and feeding sources are the three fundamental segments
defining photonic devices. Since excitation is usually dictated by the application and there
are infinite ways to select the spatial ...
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Stanke, Monika; Kedziera, Dariusz; Bubin, Sergiy; Molski, Marcin; Adamowicz, Ludwik
(2008)
We report the derivation of the orbit-orbit relativistic correction for calculating pure vibrational
states of diatomic molecular systems with electrons within the framework that does not assume
the Born-Oppenheimer ...
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Monticone, Francesco; Valagiannopoulos, Constantinos; Alù, Andrea
(American Physical Society. Physical Review X, 2016)
Lens design for focusing and imaging has been optimized through centuries of developments; however,
conventional lenses, even in their most ideal realizations, still suffer from fundamental limitations, such as
limits ...
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Beznosko, Dmitriy; Batyrkhanov, A.; Duspayev, A.; Iakovlev, A.; Yessenov, M.
(2014)
The water-based liquid scintillator (WbLS) is a new material currently under development. It is based on the idea of dissolving
the organic scintillator in water using special surfactants. This material strives to achieve ...
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Ullrich, Bruno; Singh, Akhilesh K.; Bhowmick, Mithun; Barik, Puspendu; Ariza-Flores, David; Xi, Haowen; Tomm, Jens W.
(American Institute of Physics, 2014)
The merger of the absorption coefficient dispersion, retrieved from transmission by the modified Urbach rule introduced by Ullrich and Bouchenaki [Jpn. J. Appl. Phys. 30, L1285, 1991], with the extended Roosbroeck-Shockley ...
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Valagiannopoulos, Constantinos; Lagoudakis, Pavlos G.
(Nazarbayev University School of Science and Technology, 2018-04-13)
Based on effective-medium approximation, we analytically optimize the color conversion of GaN-based light-emitting p–n junctions, with respect to the size and spatial density of the used photonic crystals (PhCs), being ...
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Valagiannopoulos, Constantinos
(MDPI, 2019-02-28)
Billions of U.S. dollars of basic and applied research funding have been invested during
the last few years in ideas proposing inverse concepts. The photonics market could not make
an exception to this global trend, and ...
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Provata, A.; Oikonomou, Th.
(2007)
The size distributions of all known coding and noncoding DNA sequences are studied in all human chromosomes. In a unified approach, both introns and intergenic regions are treated as noncoding regions. The distributions ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2014)
Benchmark variational calculations are performed for the seven lowest 1s22s np (1P), n = 2. . . 8, states of the beryllium atom. The calculations explicitly include the effect of finite mass of 9Be nucleus and account ...
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Bubin, Sergiy; Sharkey, Keeper L.; Adamowicz, Ludwik
(2013)
Very accurate variational nonrelativistic finite-nuclear-mass calculations employing all-electron explicitly correlated Gaussian basis functions are carried out for six Rydberg 2D states (1s2nd, n= 6, . . . , 11) of the ...
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Bubin, Sergiy; Adamowicz, Ludwik
(2013)
Accurate variational quantum-mechanical calculations are performed for the nine lowest 2S (1s2ns), n =
2, . . . ,10 states of the lithium atom. The effect of the finite nuclear mass is explicitly included in the ...
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Valagiannopoulos, Constantinos; Monticone, F.; Alù, A.
(2016)
The powerful tools of transformation optics (TO) allow an effective distortion of a region of
space by carefully engineering the material inhomogeneity and anisotropy, and have been
successfully applied in recent years ...
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Dyshkant, A.; Beznosko, Dmitriy; Blazey, G.; Rykalin, V.; Zutshi, V.
(2006)
Detailed measurements of the wavelength shifting fiber response to a stable and reliable light source are presented. Details about materials, a double reference method, and measurement technique are included. The fibers ...
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Mandilara, Aikaterini; Akulin, Vladimir M.; Smilga, Andrei V.; Viola, Lorenza
(2006)
We propose a general method for introducing extensive characteristics of quantum entanglement. The
method relies on polynomials of nilpotent raising operators that create entangled states acting on a reference
vacuum ...
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Mandilara, Aikaterini; Cerf, N. J.
(2012)
We rederive the Schr¨odinger-Robertson uncertainty principle for the position and momentum of a quantum
particle. Our derivation does not directly employ commutation relations, but works by reduction to an eigenvalue
problem ...
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Ivić, Z.; Lazarides, N.; Tsironis, G.P.
(Nature Research, 2016)
Quantum bits (qubits) are at the heart of quantum information processing schemes. Currently, solid-state qubits, and in particular the superconducting ones, seem to satisfy the requirements for being the building blocks ...
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Valagiannopoulos, Constantinos; Tretyakov, S. A.
(IEEE, 2016)
We show that it is possible to realize a passive planar
reflector whose reflectivity (close to the resonant frequency of
the reflector structure) is larger than unity. This reflector is
strongly coupled to evanescent ...
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Good, Michael; Abdikamalov, Ernazar
(Universe, 2020-08)
The purpose of this study is to investigate radiation from asymptotic zero acceleration motion where a horizon is formed and subsequently detected by an outside witness. A perfectly reflecting moving mirror is used to model ...
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Beznosko, Dmitriy; Beremkulov, T.; Duspayev, A.; Iakovlev, A.
(International Conference on New Photo-detectors, 2015)
The main problems with existing hardware random number generators today are either low speed and/or prohibitively high cost. The physical concept and test results of sample data of the high-speed hardware true random number ...
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Beznosko, Dmitriy; Beremkulov, T.; Duspayev, A.; Iakovlev, A.; Tailakov, A.; Yessenov, M.
(2015)
This paper presents the physical concept and test results of sample data of the high-speed
hardware true random number generator design based on typically used for High Energy
Physics hardware. Main features of this ...