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Articles

Articles

 

Recent Submissions

  • 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 ...
  • Shramkova, O. V.; Tsironis, G. P. (Journal of Optics (United Kingdom), 2016-10-01)
    The optical properties of PT-symmetric periodic stacks of the layers with balanced loss and gain are examined. We demonstrate that the tunnelling phenomenon in periodic structures is connected with excitation of surface ...
  • Hizanidis, J.; Lazarides, N.; Tsironis, G. P. (Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2016-09-27)
    We report on the emergence of robust multiclustered chimera states in a dissipative-driven system of symmetrically and locally coupled identical superconducting quantum interference device (SQUID) oscillators. The "snakelike" ...
  • 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 ...
  • 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 ...
  • Hizanidis, J.; Lazarides, N.; Neofotistos, G.; Tsironis, G. P. (European Physical Journal: Special Topics, 2016-09-01)
    One-dimensional arrays of Superconducting QUantum Interference Devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic multistability, negative magnetic permeability, ...
  • Yesenov, M.; Beznosko, Dmitriy; Duspayev, A.; Iakovlev, A. (International Conference on New Photo-detectors, 2015)
    About half of all elements heavier than iron are produced in a stellar environment through the s process, which involves a series of subsequent neutron captures and α decays. The reaction 13C(α,n)16O is considered to be ...
  • Beznosko, Dmitriy; Batyrkhanov, А.; Beremkulov, Т.; Duspayev, A.; Iakovlev, A.; Makhataeva, Z.; Yelshibekov, K.; Yessenov, M.; Beisembaev, R.U.; Zhukov, V.V. (38th International Conference on High Energy Physics, 2016)
    “Horizon-T” is an innovative detector system located at Tien Shan high-altitude Science Station (TSHASS) at approximately 3340 meters above the sea level. It consists of eight detection points separated by the distance ...
  • Duspayev, А.; Beremkulov, Т.; Beznosko, Dmitriy; Iakovlev, A.; Yelshibekov, K.; Yessenov, М.; Beisembaev, R.U.; Zhukov, V.V. (38th International Conference on High Energy Physics, 2016)
    In the field of High Energy Physics today there are several open topics left. The Higgs boson has been recently discovered, neutrino oscillations are being studied, and some hints of the dark matter have been detected ...
  • Batyrkhanov, А.; Beznosko, Dmitriy; Yelshibekov, K.; Iakovlev, A. (38th International Conference on High Energy Physics, 2016)
    Nowadays, many particle detectors use liquid scintillator (LS) as a detection medium. In particular, Water-based Liquid Scintillator (WbLS) that is a new material currently under development. It is based on the idea of ...
  • Beznosko, Dmitriy; Beisembaev, Rashid; Baigarin, Kanat; Beisembaeva, Elena; Dalkarov, Oleg; Ryabov, Vladimir; Sadykov, Turlan; Shaulov, Sergei; Stepanov, Aleksei; Vildanova, Marina; Vildanov, Nikolay; Zhukov, Valeriy (ISVHECRI 2016, 2016)
    The total of 23500 Extensive Air Showers (EAS) with the energy above 1016 eV have been detected during the 3500 hours of Horizon-T (HT) detectors system operations before Aug 2016. Among these EAS, more than a thousand ...
  • Beznosko, Dmitriy; Beisembaev, Rashid; Baigarin, Kanat; Beisembaeva, Elena; Dalkarov, Oleg; Ryabov, Vladimi; Sadykov, Turlan; Shaulov, Sergei; Stepanov, Alekse; Vildanova, Marina; Vildanov, Nikolay; Zhukov, Valeriy (ISVHECRI 2016, 2016)
    Horizon-T is an innovative detector system constructed to study Extensive Air Showers (EAS) in the energy range above 1016 eV coming from a wide range of zenith angles (0o - 85o). The system is located at the Tien Shan ...
  • 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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