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The kinetic energy of bulk relativistic plasma ejected from the central engine of blazars is converted into nonthermal particle energy in the comoving frame through a process of sweeping up material from the surrounding medium. The…

Astrophysics · Physics 2009-10-31 Charles D. Dermer

Plasmon lasers create and sustain intense and coherent optical fields below light's diffraction limit with the unique ability to drastically enhance light-matter interactions bringing fundamentally new capabilities to bio-sensing, data…

Optics · Physics 2015-05-18 Ren-Min Ma , Rupert F Oulton , Volker J Sorger , Xiang Zhang

We discuss a new compact gamma-ray source aiming at high spectral density, up to two orders of magnitude higher than currently available bremsstrahlung sources, and conceptually similar to Compton Sources based on conventional linear…

Plasma Physics · Physics 2015-06-12 L. A. Gizzi , M. P. Anania , G. Gatti , D. Giulietti , G. Grittani , M. Kando , M. Krus , L. Labate , T. Levato , Y. Oishi , F. Rossi

Laser cooling typically requires one or more repump lasers to clear dark states and enable recycling transitions. Here, we have achieved cooling of Be+ ions using a single laser beam, facilitated by one-dimensional heating through…

Atomic Physics · Physics 2024-06-21 Yue Xiao , Yongxu Peng , Linfeng Chen , Chunhui Li , Zongao Song , Xin Wang , Tao Wang , Yurun Xie , Bin Zhao , Tiangang Yang

This Snowmass21 Contributed Paper encourages the Particle Physics community in fostering R&D in Superconducting Nb3Sn coated Copper RF Cavities instead of costly bulk Niobium. It describes the pressing need to devote effort in this…

A recent proposal of accelerator based fusion reactor considers a scheme where an ion beam from the accelerator hits the target plasma on the resonance of the fusion reaction so that the reactivity ($\sigma v$) can be an order of magnitude…

Plasma Physics · Physics 2025-02-21 Keh-Fei Liu

This study explores a simplified one-dimensional subchannel of a graphite-moderated nuclear reactor operating with a gaseous core in steady-state conditions, reproducing a neutronic-thermal-fluid-dynamics coupled problem with thermal…

Computational Physics · Physics 2024-07-18 Mathis Caprais , Kacim François-Elie , Daniele Tomatis

This dissertation explores the interaction between high-intensity lasers and plasmas to accelerate electrons and produce radiation via experimental and computational efforts. The laser pulses used in this dissertation have ultrashort…

Plasma Physics · Physics 2022-10-19 Jinpu Lin

In the past, a number of heat engine models have been devised to apply the principles of thermodynamics to a laser. The best one known is the model using a negative temperature to describe population inversion. In this paper, we present a…

Optics · Physics 2021-04-16 Peter Muys

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

For production of low temperature plasmas with low collisionality, 2.45GHz microwave power up to 20kW is injected perpendicularly to the toroidal field at very low toroidal field Bt

Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on the investigation of electromagnetic radiation and particle…

High Energy Physics - Phenomenology · Physics 2021-11-02 Th. V. Papavasileiou , O. T. Kosmas , J. Sinatkas

The detonation behaviors during thermonuclear burning indicate a state of robust hot spot burning and are widely present in astronomical phenomena, such as supernovae. In this work, we propose an analytical model including alpha-particle…

Plasma Physics · Physics 2024-12-18 Bohan Shen , Junjue Liao , Renjie He , Zekun Xu , Fuyuan Wu , Jie Zhang

Minijet production in hadronic and nuclear collisions through a BFKL pomeron ladder is studied for the energies of the future LHC heavy-ion collisions. We use unintegrated gluon densities compatible with the small-$x$ increase of parton…

High Energy Physics - Phenomenology · Physics 2009-10-28 K. J. Eskola , A. V. Leonidov , P. V. Ruuskanen

Plasma wakefield accelerators have the potential to revolutionize particle physics by providing lepton collision energies orders of magnitude beyond current technology. Crucially, these accelerators require a high-density, highly…

Plasma Physics · Physics 2025-11-11 Marcel Granetzny , Barret Elward , Michael Zepp , Maxwell Loughan , Oliver Schmitz

Molecules have proven to be sensitive tools for studying physics beyond the standard model, with heavy and deformed nuclei offering decisive sensitivity to parity- and time-reversal-violating effects. However, almost all elements beyond…

We study laser cooling of atomic gases by collisional redistribution of fluorescence. In a high pressure buffer gas regime, frequent collisions perturb the energy levels of alkali atoms, which allows for the absorption of a far red detuned…

In a magnetic mirror fusion reactor, capturing the energy of fusion-produced alpha particles is essential to sustaining the reaction. However, since alpha particles are born at energies much higher than the confining potential, a…

Plasma Physics · Physics 2025-04-01 Alejandro Mesa Dame , Ian E. Ochs , Nathaniel J. Fisch

The outflows from gamma ray bursts, active galactic nuclei and relativistic jets in general interact with the surrounding media through collisionless shocks. With three dimensional relativistic particle-in-cell simulations we investigate…

Astrophysics · Physics 2010-11-11 C. B. Hededal , T. Haugboelle , J. T. Frederiksen , Å. Nordlund

The traditional approaches of exciting plasmons consist of using electrons (eg: electron energy loss spectroscopy) or light (Kretchman and Otto geometry) while more recently plasmons have been excited even by single photons. A different…

Optics · Physics 2014-11-12 Yu Guo , Sean Molesky , Huan Hu , Cristian L. Cortes , Zubin Jacob
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