English
Related papers

Related papers: Experimental observation and manipulation of optic…

200 papers

We experimentally study resonant interactions of oblique surface gravity waves in a large basin. Our results strongly extend previous experimental results performed mainly for perpendicular or collinear wave trains. We generate two oblique…

Fluid Dynamics · Physics 2016-09-13 F. Bonnefoy , F. Haudin , G. Michel , B. Semin , T. Humbert , S. Aumaître , M. Berhanu , E. Falcon

The self-imaging, or Talbot Effect, that occurs with the propagation of periodically structured waves has enabled several unique applications in optical metrology, image processing, data transmission, and matter-wave interferometry. In this…

Within the framework of the average approach and direct 3D PIC (particle-in-cell) simulations we demonstrate that the gyrotrons operating in the regime of developed turbulence can sporadically emit "giant" spikes with intensities a factor…

Chaotic Dynamics · Physics 2017-09-20 N. S. Ginzburg , R. M. Rozental , A. S. Sergeev , A. E. Fedotov , I. V. Zotova , V. P. Tarakanov

A pulse of matter waves may dramatically change its shape when traversing an absorbing barrier with time-dependent transparency. Here we show that this effect can be utilized for controlled manipulation of spatially-localized quantum…

Quantum Physics · Physics 2015-05-04 Arseni Goussev

We calculate momentum imparted by colliding gravitational waves in a closed Friedmann Robertson-Walker background and also by gravitational waves with toroidal wavefronts using an operational procedure. The results obtained for toroidal…

General Relativity and Quantum Cosmology · Physics 2010-11-11 M. Sharif

We study the Floating Offshore Wind Turbine (FOWT) dynamic response to high wind velocity scenarios utilizing an extensive Markov Chain Monte Carlo simulation involving 10,000 trials of a reduced model from \cite{betti_development_2014}…

Dynamical Systems · Mathematics 2024-02-02 Yihan Liu , Michael Chertkov

The predominant force balance in rapidly rotating planetary cores is between Coriolis, pressure, buoyancy and Lorentz forces. This magnetostrophic balance leads to a Taylor state where the spatially averaged azimuthal Lorentz force is…

Earth and Planetary Astrophysics · Physics 2015-06-16 Robert J. Teed , Chris A. Jones , Steven M. Tobias

We experimentally generate cylindrically polarized wavepackets with transverse orbital angular momentum, demonstrating the coexistence of spatiotemporal optical vortex with spatial polarization singularity. The results in this paper extend…

Optics · Physics 2021-01-26 Jian Chen , Chenhao Wan , Andy Chong , Qiwen Zhan

A statistical theory of rogue waves is proposed and tested against experimental data collected in a long water tank where random waves with different degrees of nonlinearity are mechanically generated and free to propagate along the flume.…

Fluid Dynamics · Physics 2019-12-25 Giovanni Dematteis , Tobias Grafke , Miguel Onorato , Eric Vanden-Eijnden

We suggest using spatially modulated strain for control of a spin wave propagating inside a bulk magnet. The modulation with the wave vector $q=2k$, by virtue of magnetoelasticity, mixes spin waves with wave vectors near $k$ and $-k$. This…

Materials Science · Physics 2022-01-11 Ankang Liu , Alexander M. Finkel'stein

We consider recently introduced self-focusing fields that carry orbital angular momentum (OAM) [Opt. Lett. $\textbf{46}$, 2384$-$2387 (2021)] and in particular, their propagation properties through a turbulent ocean. We show that this type…

Optics · Physics 2022-10-12 Meilan Luo , Matias Koivurova , Marco Ornigotti , Chaoliang Ding

There are different techniques to sense the wavefront phase-distortions due to atmospheric turbulence. Curvature sensors are practical in their sensitivity being adjustable to the prevailing atmospheric conditions. Even at the best sites,…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Aglae Kellerer , Mark Chun , Christ Ftaclas

Aims: We determine the components of the $\Lambda$-effect tensor that quantifies the contributions to the turbulent momentum transport even for uniform rotation. Methods: Three-dimensional numerical simulations are used to study turbulent…

Astrophysics · Physics 2008-08-22 P. J. Käpylä , A. Brandenburg

The barbs or legs of some prominences show an apparent motion of rotation, which are often termed solar tornadoes. It is under debate whether the apparent motion is a real rotating motion, or caused by oscillations or counter-streaming…

Solar and Stellar Astrophysics · Physics 2018-01-24 Zihao Yang , Hui Tian , Hardi Peter , Yang Su , Tanmoy Samanta , Jingwen Zhang , Yajie Chen

We report the first experimental study upon the optical trapping and manipulation of topological insulator (TI) particles. By virtue of the unique TI properties, which have a conducting surface and an insulating bulk, the particles present…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 W. H. Campos , J. M. Fonseca , V. E. de Carvalho , J. B. S. Mendes , M. S. Rocha , W. A. Moura-Melo

We study propagation of high-frequency electromagnetic waves in a curved spacetime. We demonstrate how a modification of the standard geometric optics allows one to include the helicity dependent corrections into the equations of motion of…

General Relativity and Quantum Cosmology · Physics 2020-10-14 Valeri P. Frolov

We propose an experimental setup for manipulating the spontaneous emission of trapped ions, based on a spatial light modulator. Anticipated novelties include the potential to entangle more than two ions through a single photon detection…

In this work, we study a prototypical, experimentally accessible scenario that enables the systematic generation of so-called high-order rogue waves in atomic Bose-Einstein condensates. These waveforms lead to significantly and controllably…

Pattern Formation and Solitons · Physics 2025-02-21 Jimmie Adriazola , Panayotis Kevrekidis

Optical generation of millimeter-waves (mm-wave) is made possible by an optical heterodyne of two diode lasers on a uni-traveling-carrier photodiode (UTC-PD). We utilized this technique to produce a mm-wave oscillator with desirable…

Optics · Physics 2022-05-16 James Greenberg , Rubab Amin , Brendan M. Heffernan , Antoine Rolland

We investigate bright matter-wave solitons in the presence of a spatially varying scattering length. It is demonstrated that, even in the absence of any external trapping potential, a soliton can be confined due to the inhomogeneous…

Soft Condensed Matter · Physics 2009-11-11 G. Theocharis , P. Schmelcher , P. G. Kevrekidis , D. J. Frantzeskakis