Plasma density shaping for attosecond electron bunch generation

Andrzej Kornaszewski; Roman Spesyvtsev; Mohammed Shahzad; Enrico Brunetti; Przemysław W. Wachulak; Tomasz Fok; Łukasz Węgrzyński; Giorgio Battaglia; Bernhard Ersfeld; James Feehan; Lucas Ivan Inigo Gamiz; Karolina Kokurewicz; Wentao Li; Antoine Maitrallain; Adam Noble; Lewis Reid; Matthew Tooley; Gregory Vieux; Samuel Wiggins; Samuel Yoffe; Henryk Fiedorowicz; Dino Jaroszynski

doi:10.1117/12.2522780

Plasma density shaping for attosecond electron bunch generation

Andrzej Kornaszewski, Roman Spesyvtsev, Mohammed Shahzad, Enrico Brunetti, Przemysław W. Wachulak, Tomasz Fok, Łukasz Węgrzyński, Giorgio Battaglia, Bernhard Ersfeld, James Feehan, Lucas Ivan Inigo Gamiz, Karolina Kokurewicz, Wentao Li, Antoine Maitrallain, Adam Noble, Lewis Reid, Matthew Tooley, Gregory Vieux, Samuel Wiggins, Samuel YoffeHenryk Fiedorowicz, Dino Jaroszynski

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

2 Citations (Scopus)

69 Downloads (Pure)

Abstract

High energy attosecond electron bunches from the laser-plasma wakefield accelerator (LWFA) are potentially useful sources of ultra-short duration X-rays pulses, which can be used for ultrafast imaging of electron motion in biological and physical systems. Electron injection in the LWFA depends on the plasma density and gradient, and the laser intensity. Recent research has shown that injection of attosecond electron bunches is possible using a short plasma density ramp. For controlled injection it is necessary to keep both the laser intensity and background plasma density constant, but set to just below the threshold for injection. This ensures that injection is only triggered by an imposed density perturbation; the peak density should also not exceed the threshold for injection. A density gradient that only persists over a short range
can lead to the injection of femtosecond duration bunches, which are then Lorentz contracted to attoseconds on injection. We consider an example of a sin^2 shaped modulation where the gradient varies until the downward slope exceeds the threshold for injection and then reduces subsequently to prevent any further injection. The persistence above the threshold determines the injected bunch length, which can be varied. We consider several designs of plasma media including density perturbations formed by shaped Laval nozzles and present an experimental and theoretical study of the modulated media suitable for producing attosecond-duration electron bunches.

Original language	English
Title of host publication	Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings
Editors	MinSup Hur, Dino A. Jaroszynski
Place of Publication	Bellingham, WA
Number of pages	10
Volume	11036
ISBN (Electronic)	9781510627383
DOIs	https://doi.org/10.1117/12.2522780
Publication status	Published - 24 Apr 2019
Event	SPIE Optics + Optoelectronics - Clarion Congress Hotel, Prague, Czech Republic Duration: 1 Apr 2019 → 4 Apr 2019

Conference

Conference	SPIE Optics + Optoelectronics
Country/Territory	Czech Republic
City	Prague
Period	1/04/19 → 4/04/19

Keywords

plasma
laser wakefield accelerators
attosecond electron bunches

Access to Document

10.1117/12.2522780

Kornaszewski-etal-SPIE2019-Plasma-density-shaping-for-attosecond-electron-bunch-generationAccepted author manuscript, 1.53 MB

STFC Strathclyde 2017 DTP
Riis, E. (Principal Investigator)
STFC Science and Technology Facilities Council
1/10/17 → 30/09/21
Project: Research - Studentship
Laser-driven radiation beamlines at SCAPA (EPSRC Capital Equipment Portfolio)
McKenna, P. (Principal Investigator), Boyd, M. (Co-investigator), Gray, R. (Co-investigator), Hidding, B. (Co-investigator), Jaroszynski, D. (Co-investigator), McArthur, S. (Co-investigator) & Sheng, Z.-M. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/04/17 → 28/02/21
Project: Research
Lab in a bubble
Jaroszynski, D. (Principal Investigator), Boyd, M. (Co-investigator), Brunetti, E. (Co-investigator), Ersfeld, B. (Co-investigator), Hidding, B. (Co-investigator), McKenna, P. (Co-investigator), Noble, A. (Co-investigator), Sheng, Z.-M. (Co-investigator), Vieux, G. (Co-investigator), Welsh, G. H. (Co-investigator) & Wiggins, M. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/04/16 → 31/03/21
Project: Research

Data for: "Plasma density shaping for attosecond electron bunch generation"
Kornaszewski, A. (Creator), Jaroszynski, D. (Creator) & Brunetti, E. (Creator), University of Strathclyde, 17 May 2019
DOI: 10.15129/d19d2189-b759-4cd1-8f43-15d0369f1c84
Dataset

Cite this

Kornaszewski, A., Spesyvtsev, R., Shahzad, M., Brunetti, E., Wachulak, P. W., Fok, T., Węgrzyński, Ł., Battaglia, G., Ersfeld, B., Feehan, J., Inigo Gamiz, L. I., Kokurewicz, K., Li, W., Maitrallain, A., Noble, A., Reid, L., Tooley, M., Vieux, G., Wiggins, S., ... Jaroszynski, D. (2019). Plasma density shaping for attosecond electron bunch generation. In M. Hur, & D. A. Jaroszynski (Eds.), Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings (Vol. 11036). Article 110360R. https://doi.org/10.1117/12.2522780

@inproceedings{0074694ee5254b51a981a57441887c69,

title = "Plasma density shaping for attosecond electron bunch generation",

abstract = "High energy attosecond electron bunches from the laser-plasma wakefield accelerator (LWFA) are potentially useful sources of ultra-short duration X-rays pulses, which can be used for ultrafast imaging of electron motion in biological and physical systems. Electron injection in the LWFA depends on the plasma density and gradient, and the laser intensity. Recent research has shown that injection of attosecond electron bunches is possible using a short plasma density ramp. For controlled injection it is necessary to keep both the laser intensity and background plasma density constant, but set to just below the threshold for injection. This ensures that injection is only triggered by an imposed density perturbation; the peak density should also not exceed the threshold for injection. A density gradient that only persists over a short rangecan lead to the injection of femtosecond duration bunches, which are then Lorentz contracted to attoseconds on injection. We consider an example of a sin^2 shaped modulation where the gradient varies until the downward slope exceeds the threshold for injection and then reduces subsequently to prevent any further injection. The persistence above the threshold determines the injected bunch length, which can be varied. We consider several designs of plasma media including density perturbations formed by shaped Laval nozzles and present an experimental and theoretical study of the modulated media suitable for producing attosecond-duration electron bunches.",

keywords = "plasma, laser wakefield accelerators, attosecond electron bunches",

author = "Andrzej Kornaszewski and Roman Spesyvtsev and Mohammed Shahzad and Enrico Brunetti and Wachulak, {Przemys{\l}aw W.} and Tomasz Fok and {\L}ukasz W{\c e}grzy{\'n}ski and Giorgio Battaglia and Bernhard Ersfeld and James Feehan and {Inigo Gamiz}, {Lucas Ivan} and Karolina Kokurewicz and Wentao Li and Antoine Maitrallain and Adam Noble and Lewis Reid and Matthew Tooley and Gregory Vieux and Samuel Wiggins and Samuel Yoffe and Henryk Fiedorowicz and Dino Jaroszynski",

year = "2019",

month = apr,

day = "24",

doi = "10.1117/12.2522780",

language = "English",

volume = "11036",

editor = "MinSup Hur and Jaroszynski, {Dino A.}",

booktitle = "Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings",

note = "SPIE Optics + Optoelectronics ; Conference date: 01-04-2019 Through 04-04-2019",

}

Kornaszewski, A, Spesyvtsev, R, Shahzad, M, Brunetti, E, Wachulak, PW, Fok, T, Węgrzyński, Ł, Battaglia, G , Ersfeld, B, Feehan, J, Inigo Gamiz, LI, Kokurewicz, K, Li, W, Maitrallain, A, Noble, A, Reid, L, Tooley, M, Vieux, G, Wiggins, S , Yoffe, S, Fiedorowicz, H & Jaroszynski, D 2019, Plasma density shaping for attosecond electron bunch generation. in M Hur & DA Jaroszynski (eds), Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. vol. 11036, 110360R, Bellingham, WA, SPIE Optics + Optoelectronics, Prague, Czech Republic, 1/04/19. https://doi.org/10.1117/12.2522780

Plasma density shaping for attosecond electron bunch generation. / Kornaszewski, Andrzej; Spesyvtsev, Roman; Shahzad, Mohammed et al.
Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. ed. / MinSup Hur; Dino A. Jaroszynski. Vol. 11036 Bellingham, WA, 2019. 110360R.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Plasma density shaping for attosecond electron bunch generation

AU - Kornaszewski, Andrzej

AU - Spesyvtsev, Roman

AU - Shahzad, Mohammed

AU - Brunetti, Enrico

AU - Wachulak, Przemysław W.

AU - Fok, Tomasz

AU - Węgrzyński, Łukasz

AU - Battaglia, Giorgio

AU - Ersfeld, Bernhard

AU - Feehan, James

AU - Inigo Gamiz, Lucas Ivan

AU - Kokurewicz, Karolina

AU - Li, Wentao

AU - Maitrallain, Antoine

AU - Noble, Adam

AU - Reid, Lewis

AU - Tooley, Matthew

AU - Vieux, Gregory

AU - Wiggins, Samuel

AU - Yoffe, Samuel

AU - Fiedorowicz, Henryk

AU - Jaroszynski, Dino

PY - 2019/4/24

Y1 - 2019/4/24

N2 - High energy attosecond electron bunches from the laser-plasma wakefield accelerator (LWFA) are potentially useful sources of ultra-short duration X-rays pulses, which can be used for ultrafast imaging of electron motion in biological and physical systems. Electron injection in the LWFA depends on the plasma density and gradient, and the laser intensity. Recent research has shown that injection of attosecond electron bunches is possible using a short plasma density ramp. For controlled injection it is necessary to keep both the laser intensity and background plasma density constant, but set to just below the threshold for injection. This ensures that injection is only triggered by an imposed density perturbation; the peak density should also not exceed the threshold for injection. A density gradient that only persists over a short rangecan lead to the injection of femtosecond duration bunches, which are then Lorentz contracted to attoseconds on injection. We consider an example of a sin^2 shaped modulation where the gradient varies until the downward slope exceeds the threshold for injection and then reduces subsequently to prevent any further injection. The persistence above the threshold determines the injected bunch length, which can be varied. We consider several designs of plasma media including density perturbations formed by shaped Laval nozzles and present an experimental and theoretical study of the modulated media suitable for producing attosecond-duration electron bunches.

AB - High energy attosecond electron bunches from the laser-plasma wakefield accelerator (LWFA) are potentially useful sources of ultra-short duration X-rays pulses, which can be used for ultrafast imaging of electron motion in biological and physical systems. Electron injection in the LWFA depends on the plasma density and gradient, and the laser intensity. Recent research has shown that injection of attosecond electron bunches is possible using a short plasma density ramp. For controlled injection it is necessary to keep both the laser intensity and background plasma density constant, but set to just below the threshold for injection. This ensures that injection is only triggered by an imposed density perturbation; the peak density should also not exceed the threshold for injection. A density gradient that only persists over a short rangecan lead to the injection of femtosecond duration bunches, which are then Lorentz contracted to attoseconds on injection. We consider an example of a sin^2 shaped modulation where the gradient varies until the downward slope exceeds the threshold for injection and then reduces subsequently to prevent any further injection. The persistence above the threshold determines the injected bunch length, which can be varied. We consider several designs of plasma media including density perturbations formed by shaped Laval nozzles and present an experimental and theoretical study of the modulated media suitable for producing attosecond-duration electron bunches.

KW - plasma

KW - laser wakefield accelerators

KW - attosecond electron bunches

U2 - 10.1117/12.2522780

DO - 10.1117/12.2522780

M3 - Conference contribution book

VL - 11036

BT - Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings

A2 - Hur, MinSup

A2 - Jaroszynski, Dino A.

CY - Bellingham, WA

T2 - SPIE Optics + Optoelectronics

Y2 - 1 April 2019 through 4 April 2019

ER -

Plasma density shaping for attosecond electron bunch generation

Abstract

Conference

Keywords

Access to Document

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Projects

STFC Strathclyde 2017 DTP

Laser-driven radiation beamlines at SCAPA (EPSRC Capital Equipment Portfolio)

Lab in a bubble

Datasets

Data for: "Plasma density shaping for attosecond electron bunch generation"

Cite this