All optical electron injector using an intense ultrashort pulse laser and a solid wire target

Palchan, T.; Eisenmann, Shmuel; Zigler, A.; Kaganovich, D.; Hubbard, R. F.; Fraenkel, M.; Fisher, D.; Henis, Z.

doi:10.1007/s00340-006-2157-6

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…Nonperiodic corrugations can phase match the acceleration of nonrelativistic electrons, but the minimum corrugation length gives a minimum electron injection speed. An injector based on either radio-frequency acceleration [37] or millijoule-level illumination of solid targets [38] could potentially produce an initial high-quality electron bunch fast enough to be injected without too much added expense.…”

Section: Resultsmentioning

confidence: 99%

Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration

et al. 2008

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We report the development of corrugated slow-wave plasma guiding structures with application to quasiphase-matched direct laser acceleration of charged particles. These structures support guided propagation at intensities up to 2 ϫ 10 17 W/cm 2 , limited at present by our current laser energy and side leakage. Hydrogen, nitrogen, and argon plasma waveguides up to 1.5 cm in length with a corrugation period as short as 35 m are generated in extended cryogenic cluster jet flows, with corrugation depth approaching 100%. These structures remove the limitations of diffraction, phase matching, and material damage thresholds and promise to allow high-field acceleration of electrons over many centimeters using relatively small femtosecond lasers. We present simulations that show that a laser pulse power of 1.9 TW should allow an acceleration gradient larger than 80 MV/ cm. A modest power of only 30 GW would still allow acceleration gradients in excess of 10 MV/ cm.

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Section: Resultsmentioning

confidence: 99%

Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration

et al. 2008

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Hot electron generation from a hole target for external electron injection into a laser-based accelerator

Neuberger

Oren

Henis³

et al. 2019

AIP Advances

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We are proposing hot electrons source, which are suitable for external injection into a wakefield accelerator. Hot electrons with energies up to 3 MeV were generated by the interaction of femtosecond laser at an intensity of I=3.5×1018 W/cm2 with the preplasma produced in 25 μm holes, drilled in 1 μm Au foils targets. The preplasma created by the 1 ns prepulse preceding the intense main laser pulse generates an elongated plasma under the critical density and scale length of tens of microns. This plasma channel enables generation of high energy and collimated electron beam. The proposed approach can allow minimizing current, laser based electron accelerators, to produce a new X –ray source, to generate relatively long, high density plasma source, which important for study of nonlinear effects related to Laser Fusion and other applications.

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All optical electron injector using an intense ultrashort pulse laser and a solid wire target

Cited by 2 publications

References 32 publications

Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration

Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration

Hot electron generation from a hole target for external electron injection into a laser-based accelerator

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