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Capturing structural dynamics in crystalline silicon using chirped electrons from a laser wakefield accelerator

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Capturing structural dynamics in crystalline silicon using chirped electrons from a laser wakefield accelerator. / He, Z. -H.; Nees, John A.; Krushelnick, Karl; Thomas, Alexander George Roy; Faure, J.

In: Scientific Reports, Vol. 6, 36224 , 08.11.2016.

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He, Z. -H. ; Nees, John A. ; Krushelnick, Karl ; Thomas, Alexander George Roy ; Faure, J. / Capturing structural dynamics in crystalline silicon using chirped electrons from a laser wakefield accelerator. In: Scientific Reports. 2016 ; Vol. 6.

Bibtex

@article{4fb647cf2ed44d85a4e00d3deca533a8,
title = "Capturing structural dynamics in crystalline silicon using chirped electrons from a laser wakefield accelerator",
abstract = "Recent progress in laser wakefield acceleration has led to the emergence of a new generation of electron and X-ray sources that may have enormous benefits for ultrafast science. These novel sources promise to become indispensable tools for the investigation of structural dynamics on the femtosecond time scale, with spatial resolution on the atomic scale. Here, we demonstrate the use of laser-wakefield-accelerated electron bunches for time-resolved electron diffraction measurements of the structural dynamics of single-crystal silicon nano-membranes pumped by an ultrafast laser pulse. In our proof-of-concept study, we resolve the silicon lattice dynamics on a picosecond time scale by deflecting the momentum-time correlated electrons in the diffraction peaks with a static magnetic field to obtain the time-dependent diffraction efficiency. Further improvements may lead to femtosecond temporal resolution, with negligible pump-probe jitter being possible with future laser-wakefield-accelerator ultrafast-electron-diffraction schemes.",
author = "He, {Z. -H.} and Nees, {John A.} and Karl Krushelnick and Thomas, {Alexander George Roy} and J. Faure",
year = "2016",
month = nov,
day = "8",
doi = "10.1038/srep36224",
language = "English",
volume = "6",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Capturing structural dynamics in crystalline silicon using chirped electrons from a laser wakefield accelerator

AU - He, Z. -H.

AU - Nees, John A.

AU - Krushelnick, Karl

AU - Thomas, Alexander George Roy

AU - Faure, J.

PY - 2016/11/8

Y1 - 2016/11/8

N2 - Recent progress in laser wakefield acceleration has led to the emergence of a new generation of electron and X-ray sources that may have enormous benefits for ultrafast science. These novel sources promise to become indispensable tools for the investigation of structural dynamics on the femtosecond time scale, with spatial resolution on the atomic scale. Here, we demonstrate the use of laser-wakefield-accelerated electron bunches for time-resolved electron diffraction measurements of the structural dynamics of single-crystal silicon nano-membranes pumped by an ultrafast laser pulse. In our proof-of-concept study, we resolve the silicon lattice dynamics on a picosecond time scale by deflecting the momentum-time correlated electrons in the diffraction peaks with a static magnetic field to obtain the time-dependent diffraction efficiency. Further improvements may lead to femtosecond temporal resolution, with negligible pump-probe jitter being possible with future laser-wakefield-accelerator ultrafast-electron-diffraction schemes.

AB - Recent progress in laser wakefield acceleration has led to the emergence of a new generation of electron and X-ray sources that may have enormous benefits for ultrafast science. These novel sources promise to become indispensable tools for the investigation of structural dynamics on the femtosecond time scale, with spatial resolution on the atomic scale. Here, we demonstrate the use of laser-wakefield-accelerated electron bunches for time-resolved electron diffraction measurements of the structural dynamics of single-crystal silicon nano-membranes pumped by an ultrafast laser pulse. In our proof-of-concept study, we resolve the silicon lattice dynamics on a picosecond time scale by deflecting the momentum-time correlated electrons in the diffraction peaks with a static magnetic field to obtain the time-dependent diffraction efficiency. Further improvements may lead to femtosecond temporal resolution, with negligible pump-probe jitter being possible with future laser-wakefield-accelerator ultrafast-electron-diffraction schemes.

U2 - 10.1038/srep36224

DO - 10.1038/srep36224

M3 - Journal article

VL - 6

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 36224

ER -