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Articles

Articles

 

Recent Submissions

  • Myrzakul, S R; Imankul, M; Arzimbetova, M; Myrzakul, T R (Journal of Physics: Conference Series, 2021)
    We focus on a viable teleparallel cosmological model with a scalar field in a flat Friedman-Robertson-Walker universe. The Lagrangian and equations of motion are obtained. The case of an inhomogeneous viscous dark energy ...
  • Good, Michael R. R.; Linder, Eric V.; Wilczek, Frank (PHYSICAL REVIEW D, 2020-01-30)
    We analyze the flow of energy and entropy emitted by a class of moving mirror trajectories which provide models for important aspects of the radiation fields produced by black hole evaporation. The mirror radiation fields ...
  • Ilo-Okeke, Ebubechukwu O.; Ilyas, Batyr; Tessler, Louis; Takeoka, Masahiro; Jambulingam, Segar; Dowling, Jonathan P.; Byrnes, Tim (PHYSICAL REVIEW A, 2020-02-15)
    In recent years there has been a great deal of focus on a globe-spanning quantum network, including linked satellites for applications ranging from quantum key distribution to distributed sensors and clocks. In many of ...
  • 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 ...
  • Radice, David; Ott, Christian D.; Abdikamalov, Ernazar; Couch, Sean M.; Haas, Roland; Schnetter, Erik (American Astronomical Society, 2016-03)
    We present results from high-resolution semiglobal simulations of neutrino-driven convection in core-collapse supernovae. We employ an idealized setup with parameterized neutrino heating/cooling and nuclear dissociation ...
  • 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 ...
  • 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 ...
  • de Wijn, A. S.; Hess, B.; Fine, B. V. (American Physical Society, 2015-12-30)
    We perform a numerical investigation of the Lyapunov spectra of chaotic dynamics in lattices of classical spins in the vicinity of second-order ferromagnetic and antiferromagnetic phase transitions. On the basis of this ...
  • Huete, Cesar; Abdikamalov, Ernazar; Radice, David (Monthly Notices of the Royal Astronomical Society, 2018-04)
    Convective perturbations arising from nuclear shell burning can play an important role in propelling neutrino-driven core-collapse supernova explosions. In this work, we analyse the impact of vorticity waves on the shock ...
  • 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 ...
  • 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 ...
  • Malafarina, Daniele (MDPI, 2018-08-28)
    Quantum resolutions of the space-time singularity at the end of gravitational collapse may provide hints towards the properties of a final theory of Quantum-Gravity. The mechanism by which the singularity is avoided and ...
  • 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 ...
  • 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 ...
  • Tsitsas, N. L.; Valagiannopoulos, Constantinos (Metamaterials, 2018)
    The optimal parameters of a dielectric metasurface, composed of two alternating rectangular rods, are investigated so that it exhibits significant enhancement in the −1- diffracted order in the transmission region. An ...
  • 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 ...
  • 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 ...
  • Tagay, Zhenisbek; Valagiannopoulos, Constantinos (Physical review B, 2018-09-25)
    Gratings of infinite wires make, perhaps, the simplest class of metasurfaces, which, however, are utilized for a variety of different objectives in wave manipulation. Importantly, due to their analytical solvability, ...
  • Akilbekova, Dana; Ogay, Vyacheslav; Yakupov, Talgat; Sarsenova, Madina; Umbayev, Bauyrzhan; Nurakhmetov, Asset; Tazhin, Kairat; Yakovlev, Vladislav V.; Utegulov, Zhandos N. (Journal of Biomedical Optics, 2018-09-27)
    Biomechanical properties of mammalian bones, such as strength, toughness, and plasticity, are essential for understanding how microscopic-scale mechanical features can link to macroscale bones’ strength and fracture ...
  • Rakhymzhanov, A. M.; Gueddida, A.; Alonso-Redondo, E.; Utegulov, Zhandos; Perevoznik, D.; Kurselis, K.; Chichkov, B. N.; El Boudouti, E. H.; Djafari-Rouhani, B.; Fytas, G. (Applied Physics Letters, 2016-05)
    The phononic band diagram of a periodic square structure fabricated by femtosecond laser pulseinduced two photon polymerization is recorded by Brillouin light scattering (BLS) at hypersonic (GHz) frequencies and computed ...

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