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Direct laser acceleration has proven to be an efficient source of high-charge electron bunches and high brilliance X-rays. However, an analytical description of the acceleration in the interaction with varying plasma density targets is…

Plasma Physics · Physics 2024-12-19 Robert Babjak , Bertrand Martinez , Miroslav Krus , Marija Vranic

Laser-electron beam collisions that aim to generate electron-positron pairs require laser intensities $I \gtrsim 10^{21} ~\textrm{W/cm}^2$, which can be obtained by focusing a 1-PW optical laser to a spot smaller than 10 $~\mu$m. Spatial…

Plasma Physics · Physics 2021-11-17 Óscar Amaro , Marija Vranic

The recent, rapid advancement in space exploration is thanks to the accelerated miniaturization of electronics components on a spacecraft that is reducing the mass, volume and cost of satellites. Yet, access to space remains a distant dream…

Instrumentation and Methods for Astrophysics · Physics 2020-12-17 Alvaro Diaz-Flores , José Fernández , Leonard Vance , Himangshu Kalita , Jekan Thangavelautham

A short overview of the theory of acceleration of thin foils driven by the radiation pressure of superintense lasers is presented. A simple criterion for radiation pressure dominance at intensities around $5 \times 10^{20} \mbox{W cm}^{-2}$…

Plasma Physics · Physics 2014-03-26 Andrea Macchi

Transferring energy without transferring mass is a powerful paradigm to address the challenges faced when the access to, or the deployment of, the infrastructure for energy conversion is locally impossible or impractical. Laser beaming…

Applied Physics · Physics 2024-05-02 Richard Soref , Francesco De Leonardis , Gerard Daligou , Oussama Moutanabbir

Laser accelerated protons can be a complimentary source for treatment of oncological diseases to the existing hadron therapy facilities. We demonstrate how the protons, accelerated from near-critical density plasmas by laser pulses having…

Extensive simulations of planetary microlensing are necessary both before and after a survey is conducted: before to design and optimize the survey and after to understand its detection efficiency. The major bottleneck in such computations…

Earth and Planetary Astrophysics · Physics 2014-11-26 Matthew T. Penny

We discuss two geosynchronous gravitational wave mission concepts, which we generically name gLISA. One relies on the science instrument hosting program onboard geostationary commercial satellites, while the other takes advantage of recent…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Massimo Tinto , Daniel DeBra , Sasha Buchman , Scott Tilley

We propose an on-chip optical power delivery system for dielectric laser accelerators based on a fractal 'tree-branch' dielectric waveguide network. This system replaces experimentally demanding free-space manipulations of the driving laser…

Optimizing laser and plasma parameters is crucial for enhancing accelerated proton energy in laser-driven proton acceleration with finite laser energy for applications such as cancer therapy. Tight focusing plays a significant role in…

Plasma Physics · Physics 2026-04-10 Guanqi Qiu , Qianyi Ma , Deji Liu , Dongchi Cai , Zheng Gong , Yinren Shou , Jinqing Yu , Xueqing Yan

The resonant laser cooling of circular accelerator beams of relativistic charged particle is studied. It is shown that in the approximation of the given external electromagnetic wave amplitude (small gain free electron laser) the emittance…

Accelerator Physics · Physics 2007-05-23 R. V. Tumanian

Structured light pulses hold significant promise for their ability to overcome dephasing in laser-wakefield accelerators, that should facilitate applications in high-energy physics and XFEL. Numerical studies have shown that sculpting a…

Accelerator Physics · Physics 2026-04-08 Aaron Liberman , Anton Golovanov , Slava Smartsev , Anda-Maria Talposi , Sheroy Tata , Victor Malka

Compact, stable, and versatile laser-driven ion sources hold great promise for applications ranging from medicine to materials science and fundamental physics. While single-shot sources have demonstrated favorable beam properties, including…

In the present paper we introduce a new accelerator concept for ions. The accelerator is nano-structured and can consist of a range of materials. It is capable of generating large ionic currents at moderate ion energies. The nano-structures…

Accelerator Physics · Physics 2022-12-27 Hartmut Ruhl , Georg Korn

Lunar explorations have provided us with information about its abundant resources that can be utilized in orbiting-resource depots as lunar-derived commodities. To reduce the energy requirements of a launcher to send these commodities from…

Accelerator Physics · Physics 2021-06-23 Xiaowen Su , Muhao Chen , Manoranjan Majji , Robert E. Skelton

Particle acceleration using ultraintense, ultrashort laser pulses is one of the most attractive topics in relativistic laser-plasma research. We report proton/ion acceleration in the intensity range of 5x1019 W/cm2 to 3.3x1020 W/cm2 by…

The accelerating gradients in conventional linear accelerators are currently limited to 100 MV per meter. Plasma-based accelerators have the ability to sustain accelerating gradients which are several orders of magnitude greater than that…

Plasma Physics · Physics 2020-09-14 Vasyl Maslov , Denys Bondar , Iryna Levchuk , Ivan Onishchenko

Beam loading is the phenomenon which limits the charge and the beam quality in plasma based accelerators. An experimental study conducted with a laser-plasma accelerator is presented. Beam loading manifests itself through the decrease of…

Plasma Physics · Physics 2010-05-25 C. Rechatin , X. Davoine , A. Lifschitz , A. Ben Ismail , J. Lim , E. Lefebvre , J. Faure , V. Malka

Strong optical forces with minimal spontaneous emission are desired for molecular deceleration and atom interferometry applications. We report experimental benchmarking of such a stimulated optical force driven by ultrafast laser pulses. We…

Atomic Physics · Physics 2019-07-23 Xueping Long , Scarlett S. Yu , Andrew M. Jayich , Wesley C. Campbell

Low-energy heavy-ion beams are fundamentally limited by severe space-charge divergence, which constrains the transportable beam current to a few microamperes in conventional electrostatic accelerators. This limitation is particularly…

Plasma Physics · Physics 2026-01-07 M. Nishiura , T. Ido , M. Okamura , K. Ueda , A. Shimizu , H. Takubo