Pith. sign in

REVIEW 3 major objections 4 minor 1 cited by

Broadband coherent XUV light from $e^-/e^+$ microbunching in an intense laser pulse

T0 review · 3 major / 4 minor · reviewed 2026-08-12 · deepseek-v4-flash

Challenge this review Re-run · record.json Download PDF Read on arXiv ↗ Review JSON

Pith's one-line read According to simulations, a relativistic electron-positron bunch colliding with an intense laser pulse compresses itself by its own radiation and emits coherent XUV light as a train of 8-attosecond pulses spaced 92 attoseconds apart.

desk verdict A clever and mostly convincing simulation study of a genuinely new idea — neutral e-/e+ beams for compact OFELs — but the 8-as flagship number sits on an unreleased point-particle code whose singular-field handling is only asserted, so treat the concept as promising, not established. read the letter →

arxiv 2411.17631 v3 pith:3BUOY7QE submitted 2024-11-26 physics.plasm-ph physics.optics

Michael J. Quin , Antonino Di Piazza , Çağr{i} Erciyes , Christoph H. Keitel , Matteo Tamburini This is my paper · ORCID
classification physics.plasm-phphysics.optics
keywords electron-positronbeamsmicrobunchingattosecondpulsescoherentXUVradiationopticalfree-electronlaserLiénard-Wiechertfieldsreactionparticle-in-cellsimulation
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

Using first-principles simulations, the paper argues that a quasi-neutral, relativistic bunch of electrons and positrons can be made to lase without an undulator: when the bunch collides head-on with an intense laser pulse, the radiation it emits compresses the bunch into nanoscale microbunches, and the electrostatic attraction between opposite charges keeps those microbunches from exploding. The compressed bunch radiates coherent XUV light as a train of roughly 8-attosecond pulses separated by 92 attoseconds, with a near-flat spectral phase up to a few hundred electronvolts. The whole interaction takes place over a sub-millimeter length, so the scheme points toward attosecond XUV sources orders of magnitude more compact than free-electron lasers. The same simulations show that replacing the positrons with electrons destroys the effect: Coulomb repulsion prevents microbunching, which is why neutrality, not just density, is the key ingredient.

What carries the argument

The load-bearing mechanism is the decomposition of each particle's Liénard-Wiechert field into a velocity (Coulomb-like) field and an acceleration (radiation) field, with trajectories advanced under the reduced Landau-Lifshitz equation. The acceleration field does the compressing; the velocity field is the e-/e+ restoring force that preserves coherence. The resonant frequencies at which energy transfers from the particles to the radiation are fixed by the condition $\Theta_{l,n}^+=0$, which yields the first-harmonic wavelength $\lambda_1 = (\lambda_0/(4\gamma_0^2))(1 + a_0^2/2) \approx 55$ nm, and the detector pulse spacing $\Delta t_{\rm det} = (T_0/(8\gamma_0^2))(1 + a_0^2/2) \approx 92$ as. For a bunch of width ${\rm FWHM}_b$, coherent emission requires $\omega\,{\rm FWHM}_b \lesssim 2\pi$, which explains why compression from 16 nm to 4.4 nm extends coherence from about 78 eV to about 280 eV.

What would settle it

Repeat the point-particle simulation with a fully described regularization of the Coulomb singularity (or an independent code) and check whether the bunch still compresses from 16 nm to about 4.4 nm and produces roughly 8-as pulses at 92-as intervals; if the compression vanishes, the central claim fails. On the experimental side, a $10^{18}$ cm$^{-3}$ e-/e+ beam at 2.0 MeV colliding with a 400 nm, $a_0=5$, 400 fs laser pulse should emit a coherent harmonic comb up to about 80 eV with microbunches spaced about 55 nm, and its absence would falsify the scheme.

Watch

Extended reading notes

Core claim

In the paper's strongest form, the claim is that an e-/e+ bunch with kinetic energy 2.0 MeV ($\gamma_0=5$), 16 nm FWHM, containing 4000 electrons and 4000 positrons, colliding head-on with a 400 nm, $a_0=5$ laser pulse, compresses to a microbunch of FWHM $\approx 4.4$ nm at the pulse peak. The compression is driven by the acceleration part of the Liénard-Wiechert fields—the radiation—while the velocity fields provide the restoring force between opposite charges that sustains the compressed state; removing the velocity fields cuts the radiated energy by about a third, and removing the positrons entirely produces Coulomb explosion and no coherent emission. The radiated spectrum is coherent from the first harmonic at $\omega_1 \approx 23$ eV up to about 280 eV, and appears at a distant detector as roughly 8-as pulses separated by $\Delta t_{\rm det} \approx 92$ as, with residual spectral phase essentially flat to about 350 eV, meaning the pulses are close to the Fourier-transform limit. Fully three-dimensional particle-in-cell simulations of beams at peak densities $10^{20}$ and $10^{18}$ cm$^{-3}$ confirm that trains of microbunches separated by about $\lambda_1 \approx 55$ nm form, while electron-only beams of the same density show no microbunching.

Load-bearing premise

The load-bearing premise is that the point-particle code's treatment of the singular electric field each particle exerts on itself and its neighbors—stated in one sentence to have no practical consequences, but never described—is correct, because the 8-attosecond pulse train comes entirely from that code, which is not publicly released.

Editorial extensions

If this is right

  • An optical-FEL version of an attosecond XUV source could replace tens of meters of undulator with a sub-millimeter laser-bunch interaction region, provided a dense, low-divergence, low-energy-spread e-/e+ beam can be produced.
  • The emitted pulses are nearly transform-limited, with linear group delay dispersion below 300 eV, so no additional compression stage is required for the lower harmonics.
  • Operation at $10^{18}$ cm$^{-3}$ with a 400 fs laser pulse still produces nanoscale microbunches (FWHM about 15.3 nm, corresponding to 51 as), a density regime the authors argue is reachable with current or near-term technology.
  • A kinetic energy spread of 0.6% leaves the first-harmonic coherence nearly intact but suppresses higher harmonics by about an order of magnitude, so the bandwidth of the source is set by beam quality.
  • Electron-only beams fail at both densities tested, even where Coulomb repulsion is weaker, so any working implementation needs the neutral e-/e+ mixture.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • The authors do not scan laser or beam parameters, but their resonance formula implies the output wavelength is tunable: raising $\gamma_0$ from 5 to 15 at the same $a_0$ would shift $\lambda_1$ from roughly 55 nm toward 6 nm, moving the emission into the soft X-ray range.
  • The paper asserts that the Coulomb divergence has no practical consequences without describing the regularization, and the point-particle code is not public; an independent implementation with a controlled regularization is the direct check of whether the 8-as train is physical.
  • Because the compression is driven by radiation reaction, the classical description is confined to $\chi_0 \ll 1$; at laser intensities where $\chi_0$ approaches unity, a QED treatment would be needed and could alter the pulse train.
  • The PIC runs show the high-density microbunches form, emit, and expand within about 50 $\mu$m, which suggests the temporal envelope of the pulse train may be controllable through the beam density profile—a possibility the paper leaves unexplored.
Share X Bluesky LinkedIn Reddit HN

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 4 minor

Summary. The paper proposes a compact source of broadband coherent XUV radiation based on a neutral electron-positron bunch colliding head-on with an intense laser pulse. Using a point-particle simulation code that solves the Liénard-Wiechert interparticle fields and the reduced Landau-Lifshitz equation, the authors report that the bunch compresses to about 4.4 nm through its own radiation fields, producing trains of roughly 8-as pulses separated by about 92 as, with coherent emission up to about 280 eV. Supporting three-dimensional PIC simulations with Smilei show similar microbunch trains with spacing near the first harmonic wavelength λ1, and these simulations demonstrate that electron-only beams do not produce microbunching or coherent emission. An analytic model identifies the microbunching resonance with the odd harmonics of the backscattered laser field. The paper concludes that this mechanism could lead to orders-of-magnitude more compact attosecond XUV light sources.

Significance. If the central result holds, the work offers an interesting and potentially transformative route to compact attosecond XUV sources, built on the physically appealing idea that a neutral, relativistic electron-positron beam mitigates Coulomb expansion and provides a restoring force. The paper has several notable strengths: the decomposition of interparticle fields into velocity and acceleration components is a clean diagnostic that isolates the compression mechanism; the control simulations (laser only, intraspecies fields only, velocity fields off) materially support the interpretation; the analytic resonance condition in the Methods is a useful closed-form predictor; and the far-field spectra are computed with a retarded radiation integral. The authors also make the figure data publicly available on Zenodo. However, the headline 8-as pulse train is produced exclusively by a point-particle code whose treatment of the singular Liénard-Wiechert fields is only asserted, and the only claimed independent reproduction is a personal communication. These points currently limit confidence in the quantitative predictions, even though the underlying mechanism appears plausible.

major comments (3)
  1. [Dynamics of point particles; Methods: Point particle code] The central quantitative result — the 8-as pulse train in Fig. 2(c,d) — rests entirely on the point-particle code, but the manuscript gives no description of how the singular Liénard-Wiechert fields in Eqs. (3)–(4) are evaluated when two particles nearly coincide. The text in the main body states only that 'the Coulomb divergence ... has no practical consequences in our simulations.' This assertion is not supported by any information about a softening parameter, a collision cutoff, a minimum interparticle separation, or a convergence test. Since the bunch compresses to FWHM about 4.4 nm, the 1/R^2 and 1/R denominators in Eqs. (3)–(4) must be evaluated at separations much smaller than the initial FWHM of 16 nm, where the fields would be enormous if no regularization is applied. Please report the exact regularization scheme used, the values of all smoothing or cutoff parameters, and a convergence study (e.g., varying the cutoff length and the time step) that demonstrates the compression factor, the 8-as pulse duration, and the 92-as pulse separation are converged. Without this information, the signature result cannot be regarded as robust.
  2. [Particle-in-cell simulations; Fig. 4] The PIC simulations produce microbunch trains and spectra, but the temporal profile of the emitted radiation is not presented for these runs. The statement in the text that the individual microbunches are 'capable of emitting an attosecond pulse train as shown in Fig. 2(c,d)' is an inference from the point-particle code rather than a direct computation. Given that the PIC runs are the ones connected to realistic beam parameters, the authors should either compute and display the temporal structure (e.g., using the RaDiO diagnostic) or explicitly state that the attosecond pulse train has not been resolved in the PIC simulations. This distinction matters because the point-particle code is currently the only direct evidence for the 8-as pulse duration.
  3. [References; Code availability] The claimed independent reproduction of the point-particle microbunching and spectrum with the OSIRIS code is cited as Ref. [53] with the description 'personal communication (2023).' This cannot be checked by the reader and is an inadequate substitute for a citable, published result. Because this reproduction is load-bearing for confidence in the central claim, the authors should either provide a peer-reviewed reference or a preprint with sufficient detail to evaluate the reproduction, or remove the claim and qualify the result as relying solely on their own code. In addition, the point-particle code is not publicly released; a public release or a detailed test suite would substantially aid reproducibility.
minor comments (4)
  1. [Fig. 2 caption and text] The caption of Fig. 2(d) does not specify what quantity is plotted; please state explicitly that the pulse duration is the full width at half maximum of the intensity envelope, and define the time origin used for the detector.
  2. [Abstract and Discussion] The abstract describes the output as 'broadband coherent light,' but the demonstrated coherent bandwidth is approximately 23–280 eV (Fig. 2(a)). Please qualify 'broadband' with this range so that readers do not infer a wider spectral coverage than shown.
  3. [Methods: Point particle code] The Methods section gives the overall integration scheme but omits several numerical parameters needed for reproducibility, including the time step, the interpolation order used for the retarded fields, and the total number of particles in the production run (the text elsewhere states 4000 e− and 4000 e+). Please add these values.
  4. [Eq. (22)] The derivation of the pulse interval Δt_det would be easier to follow if the text explicitly noted that the factor (1 + a0^2/2) arises from the cycle-averaged longitudinal drift in Eq. (15); as written, the expression may be misread as the standard FEL resonant wavelength formula.

Circularity Check

0 steps flagged · score 0.0 of 10

No circularity: the microbunching, 8-as pulses, and 92-as spacing emerge from self-consistent first-principles simulations and an independent analytic resonance derivation, not from fitted inputs or load-bearing self-citation.

full rationale

The claimed derivation chain is self-contained. The central results — bunch compression to FWHMmb ≈ 4.4 nm, coherent XUV spectra, and the 8-as pulse train at 92-as intervals — are outputs of a point-particle code that solves the Liénard-Wiechert field equations (2)–(4), the reduced Landau-Lifshitz equation (6), and the radiation integral (7). No microbunching amplitude, pulse duration, or spectral phase is inserted as an input; these are measured from the evolved trajectories and the computed radiation integral. The 92-as interval is independently predicted by the analytic model in Eq. (22), derived from the plane-wave trajectory (Eq. 15), and then found to agree with the simulation in Fig. 2(d). The microbunching resonance condition, Eq. (21), is obtained by a perturbative calculation starting from a generic radiation field (Eq. 14); it is not the same as assuming the simulated microbunch spacing, and the full simulations (including the switched-off velocity-field and intraspecies-only configurations) provide independent evidence that acceleration fields compress the bunch and that positrons stabilize it. Self-citations such as Refs. [40] and [46] are used only for code details, radiation-reaction energy conservation, and further tests; they are not the load-bearing justification for the predicted pulse train. The OSIRIS reproduction [53] is a personal communication, but it is supplementary rather than the basis of the derivation. Caveats that affect verifiability rather than circularity: the Methods section asserts that the Coulomb divergence 'has no practical consequences' without describing the regularization, the point-particle code is not publicly released, and the OSIRIS check is not independently checkable; these are robustness concerns, not equivalence-by-construction of inputs and outputs.

Assumptions & free parameters 0 free parameters · 5 assumptions · 0 invented entities

No parameters are fitted to data; the simulation setup is specified by physical and numerical-cost considerations. The main axioms are standard classical electrodynamics, the plane-wave modeling of the laser, and the achievability of the beam parameters. No new entities are introduced.

assumptions (5)
  • domain assumption Classical Liénard-Wiechert fields and the reduced Landau-Lifshitz equation describe the e-/e+ dynamics; quantum effects (annihilation, bound states, QED critical field) are negligible.
    Stated in the paragraph following Eq. (6) and the discussion of chi0 << 1 and interparticle distance vs. positronium Bohr radius.
  • domain assumption The laser pulse can be modeled as a plane wave; a focused pulse with waist w0 = 4 um gives essentially unchanged results.
    Methods, 'Plane wave approximation'; the focused-pulse check is asserted but not displayed.
  • domain assumption In the analytic model, the radiation field amplitude E_l,perp is constant and the external laser field dominates (|Erad| << |Eext|).
    Methods, 'Model of microbunching'; the paper acknowledges the constant-amplitude assumption as a limitation of the model.
  • ad hoc to paper The PIC grid (dz=4 nm, dx=dy=10 nm) is fine enough to resolve the microbunching dynamics and the emitted harmonics.
    Methods, 'PIC simulation parameters'; questionable because the dense-case microbunch FWHM (3.42 nm) is below dz, and no convergence study is provided.
  • domain assumption Neutral e-/e+ beams with the simulated parameters (density up to 10^20 cm^-3, divergence 1 mrad, energy spread 0.1%) are or will become available.
    Discussion; the paper acknowledges this is the primary difficulty, and the 10^18 cm^-3 'current technology' claim is optimistic relative to demonstrated 10^16 cm^-3 beams.

how reviews work

0 comments
Cite this review

Pith. "Pith review of Broadband coherent XUV light from $e^-/e^+$ microbunching in an intense laser pulse." pith.science (2026). https://pith.science/paper/3BUOY7QE

@misc{pith2026241117631,
  author       = {Pith},
  title        = {Pith review of: Broadband coherent XUV light from $e^-/e^+$ microbunching in an intense laser pulse},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/3BUOY7QE}},
  note         = {Machine review of arXiv:2411.17631}
}
read the original abstract

Attosecond pulses of coherent extreme ultraviolet (XUV) light are instrumental for investigating subatomic dynamics and can be produced using a free-electron laser (FEL). It has been suggested that an optical FEL, which employs a laser pulse in place of a conventional undulator, could enable a dramatically more compact implementation of such a light source. Yet, the high electron density and subsequent high emittance implied by an optical FEL makes this concept challenging to realize with an electron beam. There has been impressive progress in recent years producing collimated dense and relativistic beams of electrons and positrons in the laboratory. As we demonstrate here, the inherent stability of a quasi-neutral electron-positron beam mitigates Coulomb expansion, and renders it a promising alternative source of coherent light. Specifically, we show via computer simulations that broadband coherent light in the XUV domain, which takes the form of 8-as pulses at 92-as intervals, can be generated by microbunching of relativistic electrons and positrons in a laser pulse. This process occurs over a sub-millimeter length scale, enabling the development of light sources which are orders-of-magnitude more compact than existing sources, with potential applications in physics, chemistry, biology, and industry.

Figures

Figures reproduced from arXiv: 2411.17631 by the authors.

Figure 1
Figure 1. FIG. 1 [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2 [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3 [PITH_FULL_IMAGE:figures/full_fig_p004_3.png] view at source ↗
Figures from the paper (1 more)
Figure 4
Figure 4. Figure 4: FIG. 4 [PITH_FULL_IMAGE:figures/full_fig_p005_4.png]

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Coherent frequency combs from electrons colliding with a laser pulse

    physics.optics 2024-12 conditional novelty 6.0 of 10

    A regularly spaced, monoenergetic electron beam colliding with a weak plane-wave laser pulse can emit a coherent soft x-ray frequency comb; the paper derives the energy-spread and spacing conditions and verifies them ...

Reference graph

Works this paper leans on

59 extracted references · 47 canonical work pages · cited by 1 Pith paper

  1. [53]

    R. R. Almeida and J. Vieira, personal communication (2023). 11

    work page 2023

  2. [1]

    Krausz and M

    F. Krausz and M. Ivanov, Attosecond physics, Rev. Mod. Phys. 81, 163 (2009)

    2009

  3. [2]

    Calegari, G

    F. Calegari, G. Sansone, S. Stagira, C. Vozzi, and M. Nisoli, Advances in attosecond science, J. Phys. B.: At. Mol. Opt. Phys.49, 062001 (2016)

    work page 2016

  4. [3]

    Lépine, M

    F. Lépine, M. Y. Ivanov, and M. J. J. Vrakking, Attosec- ond molecular dynamics: fact or fiction?, Nat. Photonics 8, 195 (2014)

    work page 2014

  5. [4]

    Nisoli, P

    M. Nisoli, P. Decleva, F. Calegari, A. Palacios, and F. Martín, Attosecond electron dynamics in molecules, Chem. Rev.117, 10760 (2017)

    work page 2017

  6. [5]

    M. F. Ciappina, J. A. Pérez-Hernández, A. S. Landsman, W. A. Okell, S. Zherebtsov, B. Förg, J. Schötz, L. Seif- fert, T. Fennel, T. Shaaran, T. Zimmermann, A. Chacón, R. Guichard, A. Zaïr, J. W. G. Tisch, J. P. Marangos, T. Witting, A. Braun, S. A. Maier, L. Roso, M. Krüger, P. Hommelhoff, M. F. Kling, F. Krausz, and M. Lewen- stein, Attosecond physics at...

    work page 2017

  7. [6]

    Calegari and F

    F. Calegari and F. Martin, Open questions in attochem- istry, Commun. Chem.6, 184 (2023)

    work page 2023

  8. [7]

    Hentschel, R

    M. Hentschel, R. Kienberger, C. Spielmann, G. A. Rei- der, N. Milosevic, T. Brabec, P. Corkum, U. Heinzmann, M. Drescher, and F. Krausz, Attosecond metrology, Na- ture 414, 509 (2001). 9

    work page 2001

Show all 59 references
  1. [8]

    S. M. Teichmann, F. Silva, S. L. Cousin, M. Hemmer, and J. Biegert, 0.5-kev soft x-ray attosecond continua, Nat. Commun.7, 11493 (2016)

    2016

  2. [9]

    Gaumnitz, A

    T. Gaumnitz, A. Jain, Y. Pertot, M. Huppert, I. Jor- dan, F. Ardana-Lamas, and H. J. Wörner, Streaking of 43-attosecond soft-x-ray pulses generated by a passively cep-stable mid-infrared driver, Opt. Express25, 27506 (2017)

    2017

  3. [10]

    J. Li, X. Ren, Y. Yin, K. Zhao, A. Chew, Y. Cheng, E. Cunningham, Y. Wang, S. Hu, Y. Wu, M. Chini, and Z. Chang, 53-attosecond x-ray pulses reach the carbon k-edge, Nat. Commun.8, 186 (2017)

    2017

  4. [11]

    Duris, S

    J. Duris, S. Li, T. Driver, E. G. Champenois, J. P. MacArthur, A. A. Lutman, Z. Zhang, P. Rosenberger, J. W. Aldrich, R. Coffee, G. Coslovich, F.-J. Decker, J. M. Glownia, G. Hartmann, W. Helml, A. Kamalov, J. Knurr, J. Krzywinski, M.-F. Lin, J. P. Marangos, M. Nantel, A. Nata...

    2020

  5. [12]

    P. K. Maroju, C. Grazioli, M. Di Fraia, M. Moioli, D. Er- tel, H. Ahmadi, O. Plekan, P. Finetti, E. Allaria, L. Gi- annessi, G. De Ninno, C. Spezzani, G. Penco, S. Spamp- inati, A. Demidovich, M. B. Danailov, R. Borghes, G. Kourousias, C. E. Sanches Dos Reis, F. Billé, A. A. L...

    2020

  6. [13]

    P.Franz, S.Li, T.Driver, R.R.Robles, D.Cesar, E.Isele, Z. Guo, J. Wang, J. P. Duris, K. Larsen, J. M. Glownia, X. Cheng, M. C. Hoffmann, X. Li, M.-F. Lin, A. Ka- malov, R. Obaid, A. Summers, N. Sudar, E. Thierstein, Z. Zhang, M. F. Kling, Z. Huang, J. P. Cryan, and A. Marinell...

    2024

  7. [14]

    Huang and K.-J

    Z. Huang and K.-J. Kim, Review of x-ray free-electron laser theory, Phys. Rev. ST Accel. Beams 10, 034801 (2007)

    2007

  8. [15]

    Schmüser, M

    P. Schmüser, M. Dohlus, J. Rossbach, and C. Behrens, Ultraviolet and Soft X-Ray Free-Electron Lasers, 2nd ed. (Springer Berlin Heidelberg, 2009)

    2009

  9. [16]

    P. Emma, R. Akre, J. Arthur, R. Bionta, C. Bost- edt, J. Bozek, A. Brachmann, P. Bucksbaum, R. Cof- fee, F.-J. Decker, Y. Ding, D. Dowell, S. Edstrom, A. Fisher, J. Frisch, S. Gilevich, J. Hastings, G. Hays, P. Hering, Z. Huang, R. Iverson, H. Loos, M. Messer- schmidt, A. Miah...

    2010

  10. [17]

    Allaria, R

    E. Allaria, R. Appio, L. Badano, W. A. Barletta, S. Bas- sanese, S. G. Biedron, A. Borga, E. Busetto, D. Cas- tronovo, P. Cinquegrana, S. Cleva, D. Cocco, M. Cornac- chia, P. Craievich, I. Cudin, G. D’Auria, M. Dal Forno, M. B. Danailov, R. De Monte, G. De Ninno, P. Del- giust...

    2012

  11. [18]

    E. Prat, P. Dijkstal, E. Ferrari, and S. Reiche, Demon- stration of large bandwidth hard x-ray free-electron laser pulses at swissfel, Phys. Rev. Lett.124, 074801 (2020)

    2020

  12. [19]

    Pompili, D

    R. Pompili, D. Alesini, M. P. Anania, S. Arjmand, M. Behtouei, M. Bellaveglia, A. Biagioni, B. Buonomo, F. Cardelli, M. Carpanese, E. Chiadroni, A. Cianchi, G.Costa, A.DelDotto, M.DelGiorno, F.Dipace, A.Do- ria, F. Filippi, M. Galletti, L. Giannessi, A. Giribono, P. Iovine, V....

    2022

  13. [20]

    Labat, J

    M. Labat, J. C. Cabadağ, A. Ghaith, A. Irman, A. Berlioux, P. Berteaud, F. Blache, S. Bock, F. Bou- vet, F. Briquez, Y.-Y. Chang, S. Corde, A. Debus, C. De Oliveira, J.-P. Duval, Y. Dietrich, M. El Ajjouri, C. Eisenmann, J. Gautier, R. Gebhardt, S. Grams, U. Helbig, C. Herbeau...

    2023

  14. [21]

    A. F. Habib, G. G. Manahan, P. Scherkl, T. Heinemann, A. Sutherland, R. Altuiri, B. M. Alotaibi, M. Litos, J. Cary, T. Raubenheimer, E. Hemsing, M. J. Hogan, J. B. Rosenzweig, P. H. Williams, B. W. J. McNeil, and B. Hidding, Attosecond-angstrom free-electron-laser towards the ...

    2023

  15. [22]

    Gea-Banacloche, G

    J. Gea-Banacloche, G. Moore, R. Schlicher, M. Scully, and H. Walther, Soft x-ray free-electron laser with a laser undulator, IEEE J. Quantum Electron.23, 1558 (1987)

    1987

  16. [23]

    Gallardo, R

    J. Gallardo, R. Fernow, R. Palmer, and C. Pellegrini, Theory of a free-electron laser with a gaussian optical undulator, IEEE J. Quantum Electron.24, 1557 (1988)

    1988

  17. [24]

    Steiniger, M

    K. Steiniger, M. Bussmann, R. Pausch, T. Cowan, A. Ir- man, A. Jochmann, R. Sauerbrey, U. Schramm, and A.Debus,Opticalfree-electronlaserswithtraveling-wave thomson-scattering, J. Phys. B: At. Mol. Opt. Phys.47, 234011 (2014). 10

    2014

  18. [25]

    Steiniger, D

    K. Steiniger, D. Albach, M. Bussmann, M. Loeser, R. Pausch, F. Röser, U. Schramm, M. Siebold, and A. Debus, Building an optical free-electron laser in the traveling-wave thomson-scattering geometry, Front. Phys. 6 (2019)

    2019

  19. [26]

    E. S. Sarachik and G. T. Schappert, Classical theory of the scattering of intense laser radiation by free electrons, Phys. Rev. D1, 2738 (1970)

    1970

  20. [27]

    Y. I. Salamin and F. H. M. Faisal, Harmonic genera- tionbysuperintenselightscatteringfromrelativisticelec- trons, Phys. Rev. A54, 4383 (1996)

    1996

  21. [28]

    Schreiber and B

    S. Schreiber and B. Faatz, The free-electron laser flash, High Power Laser Sci. Eng.3, e20 (2015)

    2015

  22. [29]

    Sarri, K

    G. Sarri, K. Poder, J. M. Cole, W. Schumaker, A. di Pi- azza, B. Reville, T. Dzelzainis, D. Doria, L. A. Gizzi, G. Grittani, S. Kar, C. H. Keitel, K. Krushelnick, S. Kuschel, S. P. D. Mangles, Z. Najmudin, N. Shukla, L. O. Silva, D. Symes, A. G. R. Thomas, M. Vargas, J. Vieira...

    2015

  23. [30]

    H. Chen, F. Fiuza, A. Link, A. Hazi, M. Hill, D. Hoarty, S. James, S. Kerr, D. D. Meyerhofer, J. Myatt, J. Park, Y. Sentoku, and G. J. Williams, Scaling the yield of laser- driven electron-positron jets to laboratory astrophysical applications, Phys. Rev. Lett.114, 215001 (2015)

    2015

  24. [31]

    Liang, T

    E. Liang, T. Clarke, A. Henderson, W. Fu, W. Lo, D. Taylor, P. Chaguine, S. Zhou, Y. Hua, X. Cen, X. Wang, J. Kao, H. Hasson, G. Dyer, K. Serratto, N. Ri- ley, M. Donovan, and T. Ditmire, High e+/e- ratio dense pair creation with1021 W/cm2 laser irradiating solid tar- gets, Sc...

    2015

  25. [32]

    T.Xu, B.Shen, J.Xu, S.Li, Y.Yu, J.Li, X.Lu, C.Wang, X. Wang, X. Liang, Y. Leng, R. Li, and Z. Xu, Ultra- short megaelectronvolt positron beam generation based on laser-accelerated electrons, Phys. Plasmas23, 033109 (2016)

    2016

  26. [33]

    J. L. Peebles, G. Fiksel, M. R. Edwards, J. von der Linden, L. Willingale, D. Mastrosimone, and H. Chen, Magnetically collimated relativistic charge-neutral elec- tron–positron beams from high-power lasers, Phys. Plas- mas 28, 074501 (2021)

    2021

  27. [34]

    C. D. Arrowsmith, P. Simon, P. J. Bilbao, A. F. A. Bott, S. Burger, H. Chen, F. D. Cruz, T. Davenne, I. Efthymiopoulos, D. H. Froula, A. Goillot, J. T. Gud- mundsson, D. Haberberger, J. W. D. Halliday, T. Hodge, B. T. Huffman, S. Iaquinta, F. Miniati, B. Reville, S. Sarkar, A....

    2024

  28. [35]

    M. J. V. Streeter, C. Colgan, J. Carderelli, Y. Ma, N. Ca- vanagh, E. E. Los, H. Ahmed, A. F. Antoine, T. Au- det, M. D. Balcazar, L. Calvin, B. Kettle, S. P. D. Man- gles, Z. Najmudin, P. P. Rajeev, D. R. Symes, A. G. R. Thomas, and G. Sarri, Narrow bandwidth, low-emittance p...

    2024

  29. [36]

    Y. Noh, J. Song, M. Mirzaie, C. I. Hojbota, H.-i. Kim, S. Lee, J. Won, H. Song, C. Song, C.-M. Ryu, C. H. Nam, and W. Bang, Charge-neutral, gev-scale electron- positron pair beams produced using bremsstrahlung gamma rays, Commun. Phys.7, 44 (2024)

    2024

  30. [37]

    Rohrlich,Classical Charged Particles, 3rd ed

    F. Rohrlich,Classical Charged Particles, 3rd ed. (World Scientific, 2007)

    2007

  31. [38]

    L. D. Landau and E. M. Lifshitz,The Classical Theory of Fields, 2nd ed. (Elsevier, Oxford, 1975)

    1975

  32. [39]

    Di Piazza, C

    A. Di Piazza, C. Müller, K. Z. Hatsagortsyan, and C. H. Keitel, Extremely high-intensity laser interactions with fundamental quantum systems, Rev. Mod. Phys. 84, 1177 (2012)

    2012

  33. [40]

    M. J. Quin, A. Di Piazza, C. H. Keitel, and M. Tam- burini, Effect of interparticle fields and radiation reaction on beam dynamics, Phys. Rev. Res.7, 023210 (2025)

    2025

  34. [41]

    Tamburini, F

    M. Tamburini, F. Pegoraro, A. Di Piazza, C. H. Keitel, and A. Macchi, Radiation reaction effects on radiation pressure acceleration, New J. Phys.12, 123005 (2010)

    2010

  35. [42]

    Gonoskov, T

    A. Gonoskov, T. G. Blackburn, M. Marklund, and S. S. Bulanov, Charged particle motion and radiation in strong electromagnetic fields, Rev. Mod. Phys. 94, 045001 (2022)

    2022

  36. [43]

    Fedotov, A

    A. Fedotov, A. Ilderton, F. Karbstein, B. King, D. Seipt, H. Taya, and G. Torgrimsson, Advances in qed with in- tense background fields, Phys. Rep.1010, 1 (2023)

    2023

  37. [44]

    J. D. Jackson,Classical Electrodynamics, 3rd ed. (John Wiley and Sons, Inc., 1998)

    1998

  38. [45]

    Winkler, M

    P. Winkler, M. Trunk, L. Hübner, A. Martinez de la Ossa, S. Jalas, M. Kirchen, I. Agapov, S. A. An- tipov, R. Brinkmann, T. Eichner, A. Ferran Pousa, T. Hülsenbusch, G. Palmer, M. Schnepp, K. Schubert, M. Thévenet, P. A. Walker, C. Werle, W. P. Leemans, and A. R. Maier, Active...

    2025

  39. [46]

    M. J. Quin,Classical Radiation Reaction and Collective Behaviour, Ph.D. thesis, University of Heidelberg (2023)

    2023

  40. [47]

    Y. Wang, S. Wang, A. Rockwood, B. M. Luther, R. Hollinger, A. Curtis, C. Calvi, C. S. Menoni, and J. J. Rocca, 0.85 PW laser operation at 3.3 Hz and high- contrast ultrahigh-intensityλ= 400 nm second-harmonic beamline, Opt. Lett.42, 3828 (2017)

    2017

  41. [48]

    S. Y. Mironov, V. N. Ginzburg, V. V. Lozhkarev, G. A. Luchinin, A. V. Kirsanov, I. V. Yakovlev, E. A. Khazanov, and A. A. Shaykin, Highly efficient second- harmonic generation of intense femtosecond pulses with a significant effect of cubic nonlinearity, Quantum Elec- tron. 41...

    2011

  42. [49]

    K. T. Kim, C. M. Kim, M.-G. Baik, G. Umesh, and C. H. Nam, Singlesub−50−attosecond pulse generation from chirp-compensated harmonic radiation using mate- rial dispersion, Phys. Rev. A69, 051805 (2004)

    2004

  43. [50]

    J. Liu, H. Lu, H. Lu, H. Zhang, X. Wu, D. Wu, H. Lan, J. Zhang, J. Lv, Q. Ma, Y. Xia, Z. Wang, J. Cai, Y. Zhao, Y. Geng, X. Xu, and X. Yan, Generation of ∼400 pc electron bunches in laser wakefield acceleration utilizing a structured plasma density profile, Phys. Plasmas30, 11...

    2023

  44. [51]

    Pellegrini, A

    C. Pellegrini, A. Marinelli, and S. Reiche, The physics of x-ray free-electron lasers, Rev. Mod. Phys.88, 015006 (2016)

    2016

  45. [52]

    C. Emma, N. Majernik, K. K. Swanson, R. Ariniello, S. Gessner, R. Hessami, M. J. Hogan, A. Knetsch, K. A. Larsen, A. Marinelli, B. O’Shea, S. Perez, I. Rajkovic, R. Robles, D. Storey, and G. Yocky, Experimental gener- ation of extreme electron beams for advanced accelerator ap...

    2025

  46. [54]

    R. A. Fonseca, L. O. Silva, F. S. Tsung, V. K. Decyk, W. Lu, C. Ren, W. B. Mori, S. Deng, S. Lee, T. Kat- souleas, and J. C. Adam, Osiris: A three-dimensional, fully relativistic particle in cell code for modeling plasma based accelerators, in Computational Science — ICCS 2002...

    2002

  47. [55]

    Derouillat, A

    J. Derouillat, A. Beck, F. Pérez, T. Vinci, M. Chiaramello, A. Grassi, M. Flé, G. Bouchard, I. Plotnikov, N. Aunai, J. Dargent, C. Riconda, and M. Grech, Smilei : A collaborative, open-source, multi- purpose particle-in-cell code for plasma simulation, Comput. Phys. Commun.222...

    2018

  48. [56]

    Pardal, A

    M. Pardal, A. Sainte-Marie, A. Reboul-Salze, R. A. Fon- seca, and J. Vieira, Radio: An efficient spatiotemporal radiation diagnostic for particle-in-cell codes, Comput. Phys. Commun.285, 108634 (2023)

    2023

  49. [57]

    Y. I. Salamin, G. R. Mocken, and C. H. Keitel, Elec- tron scattering and acceleration by a tightly focused laser beam, Phys. Rev. ST Accel. Beams5, 101301 (2002)

    2002

  50. [58]

    Abramowitz and I

    M. Abramowitz and I. Stegun,Handbook of Mathemati- cal Functions with Formulas, Graphs, and Mathematical Tables (U.S. Government Printing Office, 1968)

    1968

  51. [59]

    National Iner- tial Confinement Fusion Program

    M. J. Quin, A. Di Piazza, C. Erciyes, C. H. Keitel, and M. Tamburini, Data for the figures in this manuscript: https://doi.org/10.5281/zenodo.15696372 (2025). Acknowledgements This article comprises part of the PhD work of Michael J. Quin, which was successfully defended at He...

    2025 doi

Pith tools

Reviewed August 12, 2026 · model on record in the stance chip above.