Perfectly Refractive Metasurface using BianisotropyA passive and reciprocal perfectly refractive metasurface is designed using a general susceptiblity synthesis method. The metasurface uses weak spatial dispersion in the form of bianisotropy to…Guillaume Lavigne, Karim Achouri, Christophe Caloz et al.·Mar 31, 2017SaveLearn
How a dissimilar-chain system is splitting. Quasi-static, subsonic and supersonic regimesWe consider parallel splitting of a strip composed of two different chains. As a waveguide, the dissimilar-chain structure radically differs from the well-studied identical-chain system. It is…Igor E. Berinskii, Leonid I. Slepyan·Mar 30, 2017SaveLearn
Helmholtz decomposition theorem and Blumenthal's extension by regularizationHelmholtz decomposition theorem for vector fields is usually presented with too strong restrictions on the fields and only for time independent fields. Blumenthal showed in 1905 that decomposition is…D. Petrascheck, R. Folk·Mar 30, 2017SaveLearn
On a paradox in the impact dynamics of smooth rigid bodiesParadoxes in the impact dynamics of rigid bodies are known to arise in the presence of friction. We show here that, on specificc occasions, in the absence of friction, the conservation laws of…Peter Palffy-Muhoray, Epifanio G. Virga, Mark Wilkinson et al.·Mar 29, 2017SaveLearn
Detailed experimental and numerical analysis of a cylindrical cup deep drawing: pros and cons of using solid-shell elementsThe Swift test was originally proposed as a formability test to reproduce the conditions observed in deep drawing operations. This test consists on forming a cylindrical cup from a circular blank,…Jeremy Coer, Herve Laurent, Marta Oliveira et al.·Mar 29, 2017SaveLearn
Spectrum of the free rod under tension and compressionIn this paper, we study the spectrum of the one-dimensional vibrating free rod equation u(4)-τu"=μu under tension (τ>0) or compression (τ<0). The eigenvalues μ as functions of the…L. Mercredi Chasman, Jooyeon Chung·Mar 28, 2017SaveLearn
Single-Frequency Microwave Imaging with Dynamic Metasurface AperturesConventional microwave imaging schemes, enabled by the ubiquity of coherent sources and detectors, have traditionally relied on frequency bandwidth to retrieve range information, while using…Timothy Sleasman, Michael Boyarsky, Mohammadreza F. Imani et al.·Mar 27, 2017SaveLearn
A Surface Admittance Equivalence Principle for Non-Radiating and Cloaking ProblemsIn this paper, we address non-radiating and cloaking problems exploiting the surface equivalence principle, by imposing at any arbitrary boundary the control of the admittance discontinuity between…Giuseppe Labate, Andrea Alù, Ladislau Matekovits·Mar 27, 2017SaveLearn
Peculiar Rotation of Electron Vortex BeamsStandard electron optics predicts Larmor image rotation in the magnetic lens field of a TEM. Introducing the possibility to produce electron vortex beams with quantized orbital angular momentum…Thomas Schachinger, Stefan Löffler, Michael Stöger-Pollach et al.·Mar 27, 2017SaveLearn
Absorption and optimal plasmonic resonances for small ellipsoidal particles in lossy mediaA new simplified formula is derived for the absorption cross section of small dielectric ellipsoidal particles embedded in lossy media. The new expression leads directly to a closed form solution for…Mariana Dalarsson, Sven Nordebo, Daniel Sjöberg et al.·Mar 22, 2017SaveLearn
Microwave Vortex-Beam Emitter Based on Spoof Surface Plasmon PolaritonsSince the orbital angular momentum (OAM) being investigated intensively in the optical region, there are growing interests in employing OAM to solve the problem in wireless communications as a new…Jia Yuan Yin, Jian Ren, Lei Zhang et al.·Mar 22, 2017SaveLearn
Relativity for gamesWe present how to implement special relativity in computer games. The resultant relativistic world shows the time dilation and Lorentz contraction exactly, not only for the player but also for all…Daiju Nakayama, Kin-ya Oda·Mar 21, 2017SaveLearn
Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfacesRecent years have heralded the introduction of metasurfaces that advantageously combine the vision of sub- wavelength wave manipulation, with the design, fabrication and size advantages associated…Andrea Colombi, Victoria Ageeva, Richard J. Smith et al.·Mar 20, 2017SaveLearn
Numerical Method in Classical DynamicsA set of algorithms is presented for efficient numerical calculation of the time evolution of classical dynamical systems. Starting with a first approximation for solving the differential equations…Charles Schwartz·Mar 20, 2017SaveLearn
Interference Between Source-Free Radiation and Radiation from Sources: Particle-Like Behavior for Classical RadiationA simple junior-level electrodynamics problem is used to illustrate the interference between a source-free standing plane wave and a wave generated by a pulse in a current sheet. Depending upon the…Timothy H. Boyer·Mar 18, 2017SaveLearn
The Rytov Approximation in Electron ScatteringIn this work we introduce the Rytov approximation in the scope of high-energy electron scattering with the motivation of developing better linear models for electron scattering. Such linear models…Jonas Krehl, Axel Lubk·Mar 17, 2017SaveLearn
Wave Manipulations by Coherent Perfect ChannelingWe report experimental and theoretical investigations of coherent perfect channeling (CPC), a process that two incoming coherent waves in waveguides are completely channeled into one or two other…Xiaonan Zhang, Chong Meng, Z. Yang·Mar 15, 2017SaveLearn
Contact-based and spheroidal vibrational modes of a hexagonal monolayer of microspheres on a substrateWe study acoustic modes of a close-packed hexagonal lattice of spheres adhered to a substrate, propagating along a high-symmetry direction. The model, accounting for both normal and shear coupling…A. Vega-Flick, R. A. Duncan, S. P. Wallen et al.·Mar 14, 2017SaveLearn
Macroscopic irreversibility and decay to kinetic equilibrium for classical hard-sphere systemsIn this paper the conditions are investigated for the occurrence of the so-called macroscopic irreversibility property and the related phenomenon of decay to kinetic equilibrium which may…Massimo Tessarotto, Claudio Cremaschini·Mar 14, 2017SaveLearn
Transformation-Optics-Based Design of a Metamaterial Radome for Extending the Scanning Angle of a Phased Array AntennaWe apply the transformation-optics approach to the design of a metamaterial radome that can extend the scanning angle of a phased-array antenna. For moderate enhancement of the scanning angle, via…Massimo Moccia, Giuseppe Castaldi, Giuliana D'Alterio et al.·Mar 9, 2017SaveLearn
Dependence of effective spectrum width of synchrotron radiation on particle energyFor an exact quantitative description of spectral properties in the theory of synchrotron radiation, the concept of effective spectral width is introduced. In the classical theory, numeric…V. G. Bagrov, D. M. Gitman, A. D. Levin et al.·Mar 8, 2017SaveLearn
Numerical analysis of the location of spectral maxima of polarization components of synchrotron radiation in the classical theoryShift of higher harmonic peak in the spectrum of synchrotron radiation with increasing energy of the radiating particle is investigated by numerical method. Calculations were carried out for the…A. S. Loginov, A. D. Saprykin·Mar 8, 2017SaveLearn
Broadside Dual-channel Orthogonal-Polarization Radiation using a Double-Asymmetric Periodic Leaky-Wave AntennaThe paper demonstrates that double unit-cell asymmetry in periodic leaky-wave antennas (P-LWAs), i.e. asymmetry with respect to both the longitudinal and transversal axes of the structure -- or…Amar Al-Bassam, Simon Otto, Dirk Heberling et al.·Mar 7, 2017SaveLearn
Steerable sound transport in a 3D acoustic networkQuasi-lossless and asymmetric sound transports, which are exceedingly desirable in various modern physical systems, are almost based on nonlinear or angular-momentum biasing effects with extremely…Bai-Zhan Xia, Jun-Rui Jiao, Hong-Qing Dai et al.·Mar 7, 2017SaveLearn
Design of an impedance matching acoustic bendWe propose the design of an impedance matching acoustic bend in this article. The bending structure is composed of sub-wavelength unit cells with perforated plates and side pipes, whose mass density…Yuzhen Yang, Han Jia, Wenjia Lu et al.·Mar 7, 2017SaveLearn