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Articles

Articles

 

Recent Submissions

  • Ilyas, Batyr; Yang, Jinye; Malafarina, Daniele; Bambi, Cosimo (European Physical Journal C: Particles and Fields, 2017-07-11)
    We study the observational properties of a class of exact solutions of Einstein’s field equations describing stationary, axially symmetric, rigidly rotating dust (i.e. noninteracting particles).We ask the questionwhether ...
  • Good, Michael R.R.; Yelshibekova, Khalykbek; Chin Ong, Yen (ArXiv, 2017-03-03)
    A new solution of a unitary moving mirror is found to produce nite energy and emit thermal radiation despite the absence of an acceleration horizon. In the limit that the mirror approaches the speed of light, the model ...
  • Ullrich, Bruno; Singh, Akhilesh K.; Barik, Puspendu; Xi, Haowen; Bhowmick, Mithun (Optics letters, 2015-06-01)
    The intrinsic photoluminescence Stokes shift, i.e., the energy difference between optical band gap and emission peak, of 350 μm thick semi-insulating GaAs wafers is found to be 4 meV at room temperature. The result is based ...
  • Valagiannopoulos, Constantinos A; 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 ...
  • 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 ...
  • Rehberg, Mirko; Kirschstein, Timo; Guli, Xiati; Müller, Steffen; Rohde, Marco; Franz, Denise; Tokay, Tursonjan; Köhling, Rüdiger (Neural Plasticity, 2017-10-02)
    Spatial learning and associating spatial information with individual experience are crucial for rodents and higher mammals. Hence, studying the cellular and molecular cascades involved in the key mechanism of information ...
  • Abdullaev, A.; Muminov, B.; Rakhymzhanov, A.; Mynbayev, N.; Utegulov, Z. N. (American Institute of Physics, 2017-07-12)
    Nanosecond laser pulse-induced melting thresholds in refractory (Nb, Mo, Ta and W) metals are measured using detected laser-generated acoustic shear waves. Obtained melting threshold values were found to be scaled with ...
  • Boardman, A D; Alberucci, A; Assanto, G; Grimalsky, V V; Kibler, B; McNiff, J; Nefedov, I S; Rapoport, Yu G; Valagiannopoulos, C A (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 ...
  • Tsitsas, N. L.; Valagiannopoulos, C. A. (IEEE, 2017)
    Obtaining anomalous reflection and transmission (namely propagation along directions different from those predicted by Snell’s law) is investigated for plane waves impinging on a planar periodic metasurface composed of two ...
  • Valagiannopoulos, Constantinos A.; Kovanis, Vassilios (PHYSICAL REVIEW A, 2017-06-06)
    In this paper, motivated by such trends in coupled optical oscillators and applied mathematics methods, we inject an inverse-design approach in the construction of the far field of multiple radiating optical apertures. ...
  • Beznosko, Dmitriy; Beremkulov, T.; Iakovlev, A.; Duspayev, A.; Vildanova, M. I.; Uakhitov, T.; Yelshibekov, K.; Yessenov, M.; Zhukov, V.V. (arXiv.org, 2017)
    Horizon-T, a modern Extensive Air Showers (EAS) detector system, is constructed at Tien Shan high-altitude Science Station of Lebedev Physical Institute of the Russian Academy of Sciences at approximately 3340 meters above ...
  • Yessenov, M.; Duspayev, A.; Beznosko, Dmitriy; Iakovlev, A.; Vildanova, M.I.; Zhukov, V.V. (arXiv.org, 2017)
    An implementation of a novel of glass-based detector with fast response and wide detection range is needed to increase resolution for ultra-high energy cosmic rays detection. Such detector has been designed and built for ...
  • Tsitsas, Nikolaos L.; Valagiannopoulos, Constantinos A. (Journal of the Optical Society of America B, 2017-03-15)
    Plane wave scattering by a planar metasurface composed of two periodically alternating rectangular dielectric rods is considered. A rigorous integral equation methodology is employed for the analysis and the accurate ...
  • Savoia, Silvio; Valagiannopoulos, Constantinos A.; 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 ...
  • 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 ...
  • Valagiannopoulos, Constantinos A.; Simovski, Constantin R.; Tretyakov, Sergei A. (EPJ Applied Metamaterials, 2017)
    The speed with which electromagnetic energy can be wirelessly transferred from a source to the user is a crucial indicator for the performance of a large number of electronic and photonic devices. We expect that ...
  • Valagiannopoulos, Constantinos A.; Tsitsas, N. L.; Lakhtakia, A. (Journal of Applied Physics, 2017)
    Giant in-plane anisotropy can be exhibited by a finitely thick periodic multilayer comprising bilayers of an isotropic noncentrosymmetric material and a non-dissipative isotropic medium of negative permittivity, when a ...
  • Valagiannopoulos, C. A.; Mandilara, A.; Moiseev, S. A.; Akulin, V. M. (arXiv, 2017-01-12)
    We show how by a tailored breaking of the translational symmetry in waveguides and optical bers one can control chromatic dispersions of the individual modes at any order and thereby overcome the problem of coherent ...
  • 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 ...
  • Abdikamalov, Ernazar; Zhaksylykov, Azamat; Radice, David; Berdibek, Shapagat (Monthly Notices of the Royal Astronomical Society, 2016-10-01)
    Nuclear shell burning in the final stages of the lives of massive stars is accompanied by strong turbulent convection. The resulting fluctuations aid supernova explosion by amplifying the non-radial flow in the post-shock ...

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