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Applied Sciences
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Advances in Intense Femtosecond Laser Pulses and Their Applications
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Advances in Intense Femtosecond Laser Pulses and Their Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1364

Special Issue Editor

Dr. Philip Martin

E-Mail Website
Guest Editor
Centre for Light-Matter Interactions, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK
Interests: laser ion acceleration; plasma acceleration; plasma diagnostics; laser-driven neutron beams; ion diagnostics; high-energy density matter
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The interaction of intense (>1018 W/cm2) femtosecond-duration laser pulses with matter has been shown to produce brilliant, high-energy, secondary radiation sources, such as electrons, ions, gamma rays, and terahertz radiation.

Over the years, significant attention has been drawn to the diverse range of possible applications for these sources, such as, in therapeutic applications, nuclear physics, and high-energy density matter physics. These sources offer advantages over conventionally created beams, namely their ulra-short burst duration, high flux, and compact acceleration lengths.

This Special Issue will focus on the characteristics of the radiation that can be generated by such high-intensity pulses, including their applications in industry, research, and beyond.

Topics that this Special Issue cover include:

  • Plasma wakefield acceleration;
  • Ion acceleration;
  • Neutron beam generation;
  • High-harmonic generation;
  • Terahertz generation;
  • Strong-field QED processes;
  • High-energy density matter;
  • Proton–boron fusion;
  • Applications of high-energy laser-driven sources;
  • High-repetition-rate beams.

Dr. Philip Martin
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • femtosecond laser pulses
  • high-power lasers
  • laser-driven ion acceleration
  • laser-driven electron acceleration
  • laser-driven radiation sources
  • high-harmonic generation
  • high-repetition-rate laser systems
  • high-repetition-rate targetry
  • terahertz radiation

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Published Papers (1 paper)

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Research

17 pages, 5984 KiB  
Article
Enhanced Energy, Conversion Efficiency and Collimation of Protons Driven by High-Contrast and Ultrashort Laser Pulses
by Weipeng Yao, Ronan Lelièvre, Tessa Waltenspiel, Itamar Cohen, Amokrane Allaoua, Patrizio Antici, Arie Beck, Erez Cohen, Xavier Davoine, Emmanuel d’Humières, Quentin Ducasse, Evgeny Filippov, Cort Gautier, Laurent Gremillet, Pavlos Koseoglou, David Michaeli, Dimitrios Papadopoulos, Sergey Pikuz, Ishay Pomerantz, Francois Trompier, Yuran Yuan, Francois Mathieu and Julien Fuchsadd Show full author list remove Hide full author list
Appl. Sci. 2024, 14(14), 6101; https://doi.org/10.3390/app14146101 - 12 Jul 2024
Viewed by 1067
Abstract
Progress in laser-driven proton acceleration requires increasing the proton maximum energy and laser-to-proton conversion efficiency while reducing the divergence of the proton beam. However, achieving all these qualities simultaneously has proven challenging experimentally, with the increase in beam energy often coming at the [...] Read more.
Progress in laser-driven proton acceleration requires increasing the proton maximum energy and laser-to-proton conversion efficiency while reducing the divergence of the proton beam. However, achieving all these qualities simultaneously has proven challenging experimentally, with the increase in beam energy often coming at the cost of beam quality. Numerical simulations suggest that coupling multi-PW laser pulses with ultrathin foils could offer a route for such simultaneous improvement. Yet, experimental investigations have been limited by the scarcity of such lasers and the need for very stringent temporal contrast conditions to prevent premature target expansion before the pulse maximum. Here, combining the newly commissioned Apollon laser facility that delivers high-power ultrashort (∼24fs) pulses with a double plasma mirror scheme to enhance its temporal contrast, we demonstrate the generation of up to 35 MeV protons with only 5 J of laser energy. This approach also achieves improved laser-to-proton energy conversion efficiency, reduced beam divergence, and optimized spatial beam profile. Therefore, despite the laser energy losses induced by the plasma mirror, the proton beams produced by this method are enhanced on all accounts compared to those obtained under standard conditions. Particle-in-cell simulations reveal that this improvement mainly results from a better space–time synchronization of the maximum of the accelerating charge-separation field with the proton bunch. Full article
(This article belongs to the Special Issue Advances in Intense Femtosecond Laser Pulses and Their Applications)
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