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@inproceedings{lemons:ipac2021-thpab060,
author = {R.A. Lemons and S. Carbajo and C.G. Durfee and J.P. Duris and A. Marinelli and N.R. Neveu},
title = {{Dispersion Controlled Temporal Shaping of Photoinjector Laser Pulses for Electron Emittance Reduction in X-Ray Free Electron Lasers}},
booktitle = {Proc. IPAC'21},
pages = {3886--3889},
eid = {THPAB060},
language = {english},
keywords = {laser, electron, emittance, simulation, bunching},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-THPAB060},
url = {https://jacow.org/ipac2021/papers/thpab060.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB060},
abstract = {{Temporal shaping of photocathode excitation laser pulses is a long-sought-after challenge to tailor the phase-space of electrons. The temporal profile of lasers, typically up-converted from infrared to ultraviolet, have significant impact on the distribution and time-evolution of the collective electron bunches. Towards this end, we present a method combining efficient nonlinear up-conversion with simultaneous and adaptable temporal profile shaping through dispersion-controlled sum-frequency generation* resulting in temporal profiles with sharp rise-fall times and flat top profiles. Using the LCLS-II photoinjector as a case study, we demonstrate a reduction in generated electron transverse emittance by upwards of 30% over conventionally implemented temporal profiles. Additionally, we discuss the ongoing experimental implementation of this method and preliminary results.}},
}