Scanning cross-correlator for monitoring uniform 3D ellipsoidal laser beams

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

doi:10.1070/qe2014v044n01abeh015224

Cited by 23 publications

(7 citation statements)

References 4 publications

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“…The first part is stretched in a fiber Bragg grating stretcher and amplified in a fiber amplifier to an energy of tens of nanojoules, after which it is divided into three replicas. To accurately adjust the time delay, each replica has delay lines based on a piezoelectric disk, which mechanically stretches out the fiber coiled and glued on its side [ 36 ] (not shown in Figure 3) when a proper voltage is applied to the disk. Two replicas are used in ytterbium amplifiers in the solid-state part (Figure 3), and the third one is used as an auxiliary output (point 1.5).…”

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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“…As we mentioned previously, if τ τ F , the intensity distribution in the time domain is proportional to the intensity distribution in the frequency domain. The envelope was recorded by a scanning cross-correlator [40], where we used an oo-e non-collinear second harmonic generation process. The interaction of the shaped operating pulse with the diagnostic channel pulse, whose duration of 0.2 ps was close to the FTL, was implemented in a 1 mm thick nonlinear BBO crystal.…”

Section: Experimental Shaping Of Quasi-triangular Laser Pulsesmentioning

confidence: 99%

Shaping triangular picosecond laser pulses for electron photoinjectors

Kudzej¹,

Mironov²,

Gacheva³

et al. 2018

Laser Phys. Lett.

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Beam driven wakefield acceleration is one of the most advanced novel accelerator concepts. This process occurs in a plasma or a slow-wave structure in which the drive beam deposits energy in the form of a wake and the main beam is accelerated by this wake. For efficient acceleration, it is important to shape the drive beam current and to increase the so-called transformer ratio: the energy gain by the main beam to the energy loss of the drive beam. Triangular bunch shapes are among the most promising distributions considered for increasing the transformer ratio. In most cases, the drive beam is shaped with the help of electron beam phase space manipulation along with removal of portions of the beam with a scraper. This type of shaping is complicated by itself, causing charge loss and thermal heating, but also leads to beam instabilities due to the altered phase space of the beam. In this paper, we demonstrate experimentally the shaping of picosecond laser pulses in the form of a triangle with the help of a spatial light modulator. Such laser pulses can be used to generate a triangular electron bunch from a photoinjector. Considerations on the required pulse profile, comparison to other shaping methods, experimental results, and numerical analysis of the impact of pulse shaper parameters on the reproducibility of the triangular laser pulse shape are presented.

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“…By varying the delay we observed different time sections of the studied pulses. The cross-correlator was described in detail in our earlier work [13].…”

Section: Description Of the Experimental Setupmentioning

confidence: 99%