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We show that monoenergetic ion beams can be accelerated by moderate Mach number collisionless, electrostatic shocks propagating in a long scale-length exponentially decaying plasma profile. Strong plasma heating and density steepening…

We report the observation of the transition from an ordered solid-like phase to a disordered liquid-like phase of a lattice of spikes on a ferrofluid surface submitted to horizontal sinusoidal vibrations. The melting transition occurs for a…

Soft Condensed Matter · Physics 2010-01-05 François Boyer , Eric Falcon

Slow dynamics in an amorphous quasi-two-dimensional complex plasma, comprised of microparticles of two different sizes, was studied experimentally. The motion of individual particles was observed using video microscopy, and the self-part of…

We investigate the structural properties and melting behavior of two-dimensional ion crystals in an RF trap, focusing on the effects of ion temperature and trap potential symmetry. We identify distinct crystal structures that form under…

Atomic Physics · Physics 2025-03-05 Boris V. Pashinsky , Alexander Kato , Boris B. Blinov

We analyse the kinematic properties of a plasma electron hole: a non-linear self-sustained localized positive electric potential perturbation, trapping electrons, that behaves as a coherent entity. When a hole accelerates or grows in depth,…

Plasma Physics · Physics 2016-05-24 I H Hutchinson , C T Zhou

The design of an experiment on the spontaneous crystallization of a laser-cooled, but thermal atomic cloud into a hexagonally structured phase is discussed. Atomic interaction is mediated by the dipole potential of an optical lattice formed…

Beams of energetic runaway electrons are generated during disruptions in tokamaks, and fluid models are used to study their effects on macroscale dynamics. Linear computations of a massless, runaway electron beam coupled to MHD plasma show…

Plasma Physics · Physics 2023-08-24 A. P. Sainterme , C. R. Sovinec

Transient plasma events, such as plasma disruptions, are anticipated in the future magnetic-confinement nuclear fusion reactors. The events are accompanied by a rapid change in the magnetic field generated by the plasma current and,…

Fluid Dynamics · Physics 2025-05-13 Ivan Smolyanov , Oleg Zikanov

In a laboratory, a two-dimensional complex (dusty) plasma consists of a low-density ionized gas containing a confined suspension of Yukawa-coupled plastic microspheres. For an initial crystal-like form, we report ideal gas behavior in this…

Plasma Physics · Physics 2013-07-03 Neil P. Oxtoby , Elias J. Griffith , Céline Durniak , Jason F. Ralph , Dmitry Samsonov

The localized deposition of the energy of a laser pulse, as it ablates a solid target, introduces high thermal pressure gradients in the plasma. The thermal expansion of this laser-heated plasma into the ambient medium (ionized residual…

Plasma Physics · Physics 2009-11-30 M E Dieckmann , G Sarri , L Romagnani , I Kourakis , M Borghesi

Large-scale three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbulent flame in a gravitational field of an expanding…

Astrophysics · Physics 2009-11-07 V. N. Gamezo , A. M. Khokhlov , E. S. Oran , A. Y. Chtchelkanova , R. O. Rosenberg

Charged and quasi-neutral beams propagating through an unmagnetised plasma are subject to numerous collisionless instabilities on the small scale of the plasma skin depth. The electrostatic two-stream instability, driven by longitudinal and…

Plasma Physics · Physics 2024-08-12 Erwin Walter , John P. Farmer , Martin S. Weidl , Alexander Pukhov , Frank Jenko

We consider structure and emission properties of a pair plasma fireball that cools due to radiation. At temperatures $T \geq 0.5 m_e c^2$ the cooling takes a form of clearly defined cooling wave, whereby the temperature and pair density…

High Energy Astrophysical Phenomena · Physics 2017-10-03 Maxim Lyutikov

Recent publications have described a method for stand-off optical detection of explosives using resonant infra-red photothermal imaging. This technique uses tuned lasers to selectively heat small particles of explosive lying on a substrate…

Materials Science · Physics 2011-02-18 Philip Cassady

When a sphere of one reactant is placed in the medium of another reactant with which it is hypergolic, a chemical reaction (modeled here as a zeroth-order one-step irreversible Arrhenius reaction) occurs at the common interface of the two…

Fluid Dynamics · Physics 2024-07-01 Prabakaran Rajamanickam

Spontaneous avalanche to plasma splits the core of an ellipsoidal Rydberg gas of nitric oxide. Ambipolar expansion first quenches the electron temperature of this core plasma. Then, long-range, resonant charge transfer from ballistic ions…

Plasma Physics · Physics 2018-01-03 R. Haenel , M. Schulz-Weiling , J. Sous , H. Sadeghi , M. Aghigh , L. Melo , J. S. Keller , E. R. Grant

Double-resonant photoexcitation of nitric oxide in a molecular beam creates a dense ensemble of $50f(2)$ Rydberg states, which evolves to form a plasma of free electrons trapped in the potential well of an NO$^+$ spacecharge. The plasma…

Chemical Physics · Physics 2015-05-27 N. Saquet , J. P. Morrison , M. Schulz-Weiling , H. Sadeghi , J. Yiu , C. J. Rennick , E. R. Grant

Two-dimensional microparticle crystals can be formed in the sheath of a gas discharge plasma. Ions from the bulk plasma are accelerated in the sheath electric field, flowing past the grains to create a positive ion wake downstream from the…

Plasma Physics · Physics 2023-03-17 Rahul Banka , Katrina Vermillion , Lorin Matthews , Truell Hyde , Lenaïc Couëdel

The laser induced plasma in liquid hasn't been studied enough. In liquid, the laser induced plasma may be able to resolve the hazardous material called the environment material. Then, the plasma produced in liquid by the laser light is…

Plasma Physics · Physics 2007-05-23 Jun Yamada , Norio Tsuda

A strongly coupled ultracold plasma can be used as an excellent test platform for studying many-body interactions associated with various plasma phenomena. In this paper we discuss an approach that makes possible creation of the…

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