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Coherent control of plasma dynamics

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Coherent control of plasma dynamics. / He, Z. -H.; Hou, B.; Lebailly, V. et al.
In: Nature Communications, Vol. 6, 7156, 15.05.2015.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

He, Z-H, Hou, B, Lebailly, V, Nees, JA, Krushelnick, K & Thomas, AGR 2015, 'Coherent control of plasma dynamics', Nature Communications, vol. 6, 7156. https://doi.org/10.1038/ncomms8156

APA

He, Z. -H., Hou, B., Lebailly, V., Nees, J. A., Krushelnick, K., & Thomas, A. G. R. (2015). Coherent control of plasma dynamics. Nature Communications, 6, Article 7156. https://doi.org/10.1038/ncomms8156

Vancouver

He Z-H, Hou B, Lebailly V, Nees JA, Krushelnick K, Thomas AGR. Coherent control of plasma dynamics. Nature Communications. 2015 May 15;6:7156. doi: 10.1038/ncomms8156

Author

He, Z. -H. ; Hou, B. ; Lebailly, V. et al. / Coherent control of plasma dynamics. In: Nature Communications. 2015 ; Vol. 6.

Bibtex

@article{d3a6ff17ff084963a0c94bdf86648f44,
title = "Coherent control of plasma dynamics",
abstract = "Coherent control of a system involves steering an interaction to a final coherent state by controlling the phase of an applied field. Plasmas support coherent wave structures that can be generated by intense laser fields. Here, we demonstrate the coherent control of plasma dynamics in a laser wakefield electron acceleration experiment. A genetic algorithm is implemented using a deformable mirror with the electron beam signal as feedback, which allows a heuristic search for the optimal wavefront under laser-plasma conditions that is not known a priori. We are able to improve both the electron beam charge and angular distribution by an order of magnitude. These improvements do not simply correlate with having the 'best' focal spot, as the highest quality vacuum focal spot produces a greatly inferior electron beam, but instead correspond to the particular laser phase front that steers the plasma wave to a final state with optimal accelerating fields.",
keywords = "LASER WAKEFIELD ACCELERATOR, SOFT X-RAYS, ELECTRON-ACCELERATOR, BEAMS, PULSES, OPTIMIZATION, INTENSITIES, GENERATION, ALGORITHM, PROFILE",
author = "He, {Z. -H.} and B. Hou and V. Lebailly and Nees, {J. A.} and K. Krushelnick and Thomas, {A. G. R.}",
year = "2015",
month = may,
day = "15",
doi = "10.1038/ncomms8156",
language = "English",
volume = "6",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Coherent control of plasma dynamics

AU - He, Z. -H.

AU - Hou, B.

AU - Lebailly, V.

AU - Nees, J. A.

AU - Krushelnick, K.

AU - Thomas, A. G. R.

PY - 2015/5/15

Y1 - 2015/5/15

N2 - Coherent control of a system involves steering an interaction to a final coherent state by controlling the phase of an applied field. Plasmas support coherent wave structures that can be generated by intense laser fields. Here, we demonstrate the coherent control of plasma dynamics in a laser wakefield electron acceleration experiment. A genetic algorithm is implemented using a deformable mirror with the electron beam signal as feedback, which allows a heuristic search for the optimal wavefront under laser-plasma conditions that is not known a priori. We are able to improve both the electron beam charge and angular distribution by an order of magnitude. These improvements do not simply correlate with having the 'best' focal spot, as the highest quality vacuum focal spot produces a greatly inferior electron beam, but instead correspond to the particular laser phase front that steers the plasma wave to a final state with optimal accelerating fields.

AB - Coherent control of a system involves steering an interaction to a final coherent state by controlling the phase of an applied field. Plasmas support coherent wave structures that can be generated by intense laser fields. Here, we demonstrate the coherent control of plasma dynamics in a laser wakefield electron acceleration experiment. A genetic algorithm is implemented using a deformable mirror with the electron beam signal as feedback, which allows a heuristic search for the optimal wavefront under laser-plasma conditions that is not known a priori. We are able to improve both the electron beam charge and angular distribution by an order of magnitude. These improvements do not simply correlate with having the 'best' focal spot, as the highest quality vacuum focal spot produces a greatly inferior electron beam, but instead correspond to the particular laser phase front that steers the plasma wave to a final state with optimal accelerating fields.

KW - LASER WAKEFIELD ACCELERATOR

KW - SOFT X-RAYS

KW - ELECTRON-ACCELERATOR

KW - BEAMS

KW - PULSES

KW - OPTIMIZATION

KW - INTENSITIES

KW - GENERATION

KW - ALGORITHM

KW - PROFILE

U2 - 10.1038/ncomms8156

DO - 10.1038/ncomms8156

M3 - Journal article

VL - 6

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 7156

ER -