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Nuclear fusion is a promising clean energy source in which deuterium and tritium fuse inside a magnetically confined plasma in a tokamak, releasing energy. A key challenge on the route to practical nuclear fusion is the control of the…

Systems and Control · Electrical Eng. & Systems 2026-04-30 L. L. T. C. Jansen , E. Petri , M. van Berkel , W. P. M. H. Heemels

Laser powered dielectric structures achieve high-gradient particle acceleration by taking advantage of modern laser technology capable of producing electric fields in excess of 10GV/m. These fields can drive the bulk dielectric beyond its…

Low phase noise lasers based on the combination of III-V semiconductors and silicon photonics are well established in the near-infrared spectral regime. Recent advances in the development of low-loss silicon nitride-based photonic…

The expansion of laser-irradiated clusters or nanodroplets depends strongly on the amount of energy delivered to the electrons and can be controlled by using appropriately shaped laser pulses. In this paper, a self-consistent kinetic model…

Plasma Physics · Physics 2009-11-13 F. Peano , J. L. Martins , R. A. Fonseca , F. Peinetti , R. Mulas , G. Coppa , I. Last , J. Jortner , L. O. Silva

Laser trapping near the surface of a nanostructured substrate is demonstrated. Stable microbubbles with radii of 1-20micrometers have been created and manipulated with sub-micron precision by a focused laser beam in an immersion oil…

Optics · Physics 2010-07-22 A. R. Sidorov , Y. Zhang , A. N. Grigorenko , M. R. Dickinson

We report consistent ignition of high-pressure (p > 20-30 bar) hydrogen-oxygen mixtures diluted with helium, using an unfocused Nd:YAG laser. This corresponds to laser irradiances several orders of magnitude below the minimum ignition…

Chemical Physics · Physics 2022-03-09 R. Grosso Ferreira , B. Carvalho , J. Rodrigues , R. Rodrigues , A. Smith , L. Marraffa , M. Lino da Silva

Plasma-based accelerators are a promising approach for reducing the size and cost of future particle accelerators, making them a viable technology for constructing and upgrading X-ray free-electron lasers (FELs). Adding an energy booster…

Accelerator Physics · Physics 2024-07-23 Sarah Schroeder , Jens Osterhoff , Stephan Wesch , Carl Schroeder

Accelerator-based light sources such as storage rings and free-electron lasers use relativistic electron beams to produce intense radiation over a wide spectral range for fundamental research in physics, chemistry, materials science,…

Accelerator Physics · Physics 2015-06-19 Erik Hemsing , Gennady Stupakov , Dao Xiang , Alexander Zholents

We investigate the heating of the quasi-free electrons in large rare gas clusters (N exceeding 10^5 atoms) by short laser pulses at moderate intensities (I~10^{15} Wcm^{-2}). We identify elastic large-angle backscattering of electrons at…

Atomic and Molecular Clusters · Physics 2007-05-23 C. Deiss , N. Rohringer , E. Lamour , C. Prigent , J. -P. Rozet , D. Vernhet , J. Burgdorfer

We investigate by particle-in-cell simulations in two and three dimensions the laser-plasma interaction and the proton acceleration in multilayer targets where a low density "near-critical" layer of a few micron thickness is added on the…

Plasma Physics · Physics 2015-06-03 Andrea Sgattoni , Pasquale Londrillo , Andrea Macchi , Matteo Passoni

Proton acceleration by ultra-intense laser pulse irradiating a target with cross-section smaller than the laser spot size and connected to a parabolic density channel is investigated. The target splits the laser into two parallel…

Plasma Physics · Physics 2011-12-09 F. L. Zheng , S. Z. Wu , H. C. Wu , H. B. Cai , M. Y. Yu , T. Tajima , X. Q. Yan , X. T. He

We demonstrate an electrically driven compact hybrid lithium niobate microring laser by butt coupling a commercial 980-nm pump laser diode chip with a high quality Er3+-doped lithium niobate microring chip. Single mode lasing emission at…

A recently published scheme for inertial fusion based on instantaneous heating of an uncompressed fuel is criticized. It is shown that efficient fusion and time-like fusion burn propagation cannot be realized due to the low nuclear reaction…

Plasma Physics · Physics 2020-10-06 Istvan B Foldes , Gergo I Pokol

An experimental investigation on laser plasma acceleration of electrons has been carried out using 3 TW, 45 fs duration titanium sapphire laser pulse interaction with nitrogen gas jet at intensity of 2x10^18 W/cm^2. We have observed stable…

Plasma Physics · Physics 2018-06-25 B. S. Rao , A. Moorti , J. A. Chakera , P. A. Naik , P. D. Gupta

There is a strong motivation to develop high-power output nuclear fission reactors (around 1 MWe) for space applications, such as high-payload missions and long-duration missions beyond Mars, where the reduced solar flux makes using…

Applied Physics · Physics 2020-04-28 Aiden Peakman , Robert Gregg

Generation of quasi-monoenergetic ion pulse by laser-driven acceleration is one of the hot topics in laser plasma physics. In this study, we present a new method for the \textit{In-situ} deposition of an ultra-thin D$_2$O layer on the…

An enhanced ionization injection scheme using a tightly focused laser pulse with intensity near the ionization potential to trigger the injection process in a mismatched pre-plasma channel has been proposed and examined via…

Accelerator Physics · Physics 2020-02-21 F. Li , C. J. Zhang , Y. Wan , Y. P. Wu , J. F. Hua , C. H. Pai , W. Lu , W. B. Mori , C. Joshi

The WARP Reactor Concept promises orders of magnitude increase of intense ion beam energies and respective radiation yields at a fraction of the size and cost over existing z-pinch class accelerators allowing the economically viable study…

The proposed fast ignition of highly compressed deuterium-tritium (DT) targets by petawatt lasers requires energy of about 100kJ. To lower the power of the laser, it is proposed to accomplish fast ignition with two lasers, one with lower…

Atomic Physics · Physics 2008-02-27 F. Winterberg

We demonstrate a compact ion beam device capable of accelerating H$^+$ and D$^+$ ions up to 75keV energy, on to a solid target, with sufficient beam current to study fusion reactions. The ion beam system uses a microwave driven plasma…