Shaping of cylindrical and 3D ellipsoidal beams for electron photoinjector laser drivers

Mironov, S. Yu.; Potemkin, A. K.; Gacheva, E. I.; Андрианов, А. В.; Zelenogorskii, V V; Krasilnikov, M.; Stephan, F.; Хазанов, Е. А.

doi:10.1364/ao.55.001630

Cited by 25 publications

(19 citation statements)

References 9 publications

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“…Before amplification, the pulses are profiled to provide the necessary (close to rectangular) shape of the pump pulse of the intermediate, booster and final parametric amplifiers. Since the pulses are chirped, it is convenient to use the spectral approach for their profiling [ 42 , 43 ] . This approach allows tuning the delay in few ps range with approximately kHz resolution to suppress a temporal jitter on ps parametric stages.…”

Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

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The eXawatt Center for Extreme Light Studies project aimed to create a large scientific infrastructure based on lasers with giant peak power. The project relies on the significant progress achieved in the last decade. The planned infrastructure will incorporate a unique light source with a pulse power of 600 PW using optical parametric chirped pulse amplification in large-aperture KD 2 PO 4 , deuterated potassium dihydrogen phosphate crystals. The interaction of such laser radiation with matter represents a completely new fundamental physics. The direct study of the space-time structure of vacuums and other unknown phenomena at the frontier of high-energy physics and the physics of superstrong fields will be challenged. Expected applications will include the development of compact particle accelerators, the generation of ultrashort pulses of hard X-ray and gamma radiation for material science enabling one to probe material samples with unprecedented spatial and temporal resolution, the development of new radiation and particle sources, etc. The paper is translation from Russian [Kvantovaya Elektronika 53, 95 (2023)].

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Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

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“…The bunch shape that eliminates all non-linear space charge forces is the uniformly filled ellipsoid. IR laser shaping has been demonstrated with a spatial light modulator (SLM) shaper and 3D Volume chirp Bragg grating [66]. This main challenge of this IR-based SLM method is converting the IR shape to UV for use on the Cs 2 Te or metal photocathodes.…”

Section: Laser Shaping To Control Space Charge In the Injectormentioning

confidence: 99%

Electron Sources for Accelerators

Filippetto¹,

Grames²,

Hernández-García³

et al. 2022

Preprint

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“…Recent progress in 3D laser shaping with IR laser pulses has been achieved by several groups (Kuzmin et al, 2020(Kuzmin et al, , 2019Mironov et al, 2016). For example, researchers used multiple programmable SLMs (Fig.…”

Section: Pe Based Spatio-temporal (3d) Shapingmentioning

confidence: 99%

“…For example, researchers used multiple programmable SLMs (Fig. 17) to generate both a 3D quasi-cylinder and 3D quasi-ellipsoidal IR laser distribution (Mironov et al, 2016). In addition to SLM-based techniques, 3D shaping can also be accomplished via control of chromatic aberration.…”

Section: Pe Based Spatio-temporal (3d) Shapingmentioning

confidence: 99%

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Bunch Shaping in Electron Linear Accelerators

Ha,

Kim,

Piot

et al. 2021

Preprint

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Modern electron linear accelerators are often designed to produce smooth bunch distributions characterized by their macroscopic ensemble-average moments. However, an increasing number of accelerator applications call for finer control over the beam distribution, e.g., by requiring specific shapes for its projection along one coordinate. Ultimately, the control of the beam distribution at the single-particle level could enable new opportunities in accelerator science. This review discusses the recent progress toward controlling electron beam distributions on the "mesoscopic" scale with an emphasis on shaping the beam or introducing complex correlations required for some applications. This review emphasizes experimental and theoretical developments of electron-bunch shaping methods based on bounded external electromagnetic fields or via interactions with the self-generated velocity and radiation fields. 1. Space-charge field with a single bunch 41 2. Space-charge field with a few bunches 43 3. Space-charge field with multiple bunches: space-charge oscillation 44 4. Space-charge field with multiple bunches: longitudinal cascade amplifier 46 5. Space-charge field with multiple bunches: plasma cascade amplifier 47 B. Shaping profiles using coherent synchrotron radiation 47 C. Shaping profiles using wakefields 49 1. Bunch compression 50 2. Bunch train generation 50 3. Single-bunch profile shaping 51 4. Control over the energy distribution 52 5. Control over longitudinal phase space 53 VI. Coupling between degrees of freedom for phase-space tailoring 54 A. Introduction 54 B. Coupling between the two transverse degrees of freedom 54 1. Producing beams with canonical angular momentum 54 2. Decoupling of CAM-dominated beams and transverse emittance partitioning 55 3. Phase-space exchange between the two transverse planes 57 C. Transverse-to-longitudinal phase-space exchangers 59 1. Emittance exchange 59 2. Current profile shaping 60 3. Bunch compression 62 4. Double phase-space exchangers 62 D. Generalized phase-space repartitioning between the three degrees of freedom 65 1. Flat beam transformation combined with emittance exchange 65 2. Coupling between the longitudinal and transverse phase spaces 65

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Shaping of cylindrical and 3D ellipsoidal beams for electron photoinjector laser drivers

Cited by 25 publications

References 9 publications

eXawatt Center for Extreme Light Studies

eXawatt Center for Extreme Light Studies

Electron Sources for Accelerators

Bunch Shaping in Electron Linear Accelerators

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