Publications
182 results found
Brijesh P, Thaury C, Phuoc KT, et al., 2012, Tuning the electron energy by controlling the density perturbation position in laser plasma accelerators, PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X
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- Citations: 18
Palmer CAJ, Schreiber J, Nagel SR, et al., 2012, Rayleigh-Taylor Instability of an Ultrathin Foil Accelerated by the Radiation Pressure of an Intense Laser, PHYSICAL REVIEW LETTERS, Vol: 108, ISSN: 0031-9007
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- Citations: 118
Vieira J, Martins SF, Fiuza F, et al., 2012, Influence of realistic parameters on state-of-the-art laser wakefield accelerator experiments, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 54, ISSN: 0741-3335
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- Citations: 11
Mangles SPD, 2012, COMPACT X-RAY SOURCES X-rays from self-reflection, NATURE PHOTONICS, Vol: 6, Pages: 280-281, ISSN: 1749-4885
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- Citations: 3
Kneip S, McGuffey C, Martins JL, et al., 2012, Characterization of transverse beam emittance of electrons from a laser-plasma wakefield accelerator in the bubble regime using betatron x-ray radiation, PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, Vol: 15, ISSN: 1098-4402
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- Citations: 63
Mangles SPD, Genoud G, Bloom MS, et al., 2012, Self-injection threshold in self-guided laser wakefield accelerators, Physical Review Special Topics: Accelerators and Beams, Vol: 15, Pages: 011302-1-011302-6, ISSN: 1098-4402
A laser pulse traveling through a plasma can excite large amplitude plasma waves that can be used to accelerate relativistic electron beams in a very short distance—a technique called laser wakefield acceleration. Many wakefield acceleration experiments rely on the process of wave breaking, or self-injection, to inject electrons into the wave, while other injection techniques rely on operation without self-injection. We present an experimental study into the parameters, including the pulse energy, focal spot quality, and pulse power, that determine whether or not a wakefield accelerator will self-inject. By taking into account the processes of self-focusing and pulse compression we are able to extend a previously described theoretical model, where the minimum bubble size kprb required for trapping is not constant but varies slowly with density and find excellent agreement with this model.
Kaluza MC, Schlenvoigt HP, Mangles SPD, et al., 2011, Optical characterization of laser-driven electron acceleration
We present the first well-resolved experimental observation of the non-linear formation of a laser-driven plasma wave, its breaking leading to self-injection and acceleration of electrons in the wave's electric field in the regime of "Bubble-acceleration". FIO/ LS Technical Digest © 2011 OSA.
Genoud G, Cassou K, Wojda F, et al., 2011, Laser-plasma electron acceleration in dielectric capillary tubes, APPLIED PHYSICS B-LASERS AND OPTICS, Vol: 105, Pages: 309-316, ISSN: 0946-2171
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- Citations: 21
Kneip S, McGuffey C, Martins JL, et al., 2011, Bright spatially coherent synchrotron X-rays from a table-top source (vol 6, pg 980, 2010), NATURE PHYSICS, Vol: 7, Pages: 737-737, ISSN: 1745-2473
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- Citations: 11
Kneip S, McGuffey C, Dollar F, et al., 2011, X-ray phase contrast imaging of biological specimens with femtosecond pulses of betatron radiation from a compact laser plasma wakefield accelerator, APPLIED PHYSICS LETTERS, Vol: 99, ISSN: 0003-6951
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- Citations: 108
Kaluza MC, Schlenvoigt HP, Mangles SPD, et al., 2011, Optical characterization of laser-driven electron acceleration
We present the first well-resolved experimental observation of the non-linear formation of a laser-driven plasma wave, its breaking leading to self-injection and acceleration of electrons in the wave's electric field in the regime of "Bubble-acceleration". FIO/ LS Technical Digest © 2011 OSA.
Kneip S, Nagel SR, Bellei C, et al., 2011, Study of near-GeV acceleration of electrons in a non-linear plasma wave driven by a self-guided laser pulse, PLASMA PHYSICS AND CONTROLLED FUSION, Vol: 53, ISSN: 0741-3335
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- Citations: 10
Schreiber J, Bellei C, Mangles SPD, et al., 2010, Complete Temporal Characterization of Asymmetric Pulse Compression in a Laser Wakefield, PHYSICAL REVIEW LETTERS, Vol: 105, ISSN: 0031-9007
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- Citations: 49
Kneip S, McGuffey C, Martins JL, et al., 2010, Bright spatially coherent synchrotron X-rays from a table-top source, NATURE PHYSICS, Vol: 6, Pages: 980-983, ISSN: 1745-2473
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- Citations: 353
Kneip S, McGuffey C, Martins JL, et al., 2010, A Bright Spatially-Coherent Compact X-ray Synchrotron Source, Nature Physics, ISSN: 1745-2473
Each successive generation of x-ray machines has opened up new frontiers inscience, such as the first radiographs and the determination of the structureof DNA. State-of-the-art x-ray sources can now produce coherent high brightnesskeV x-rays and promise a new revolution in imaging complex systems on nanometreand femtosecond scales. Despite the demand, only a few dedicated synchrotronfacilities exist worldwide, partially due the size and cost of conventional(accelerator) technology. Here we demonstrate the use of a recently developedcompact laser-plasma accelerator to produce a well-collimated,spatially-coherent, intrinsically ultrafast source of hard x-rays. This methodreduces the size of the synchrotron source from the tens of metres tocentimetre scale, accelerating and wiggling a high electron chargesimultaneously. This leads to a narrow-energy spread electron beam and x-raysource that is >1000 times brighter than previously reported plasma wiggler andthus has the potential to facilitate a myriad of uses across the whole spectrumof light-source applications.
Kaluza MC, Schlenvoigt H-P, Mangles SPD, et al., 2010, Measurement of Magnetic-Field Structures in a Laser-Wakefield Accelerator, PHYSICAL REVIEW LETTERS, Vol: 105, ISSN: 0031-9007
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- Citations: 48
Kaluza MC, Mangles SPD, Thomas AGR, et al., 2010, Observation of a Long-Wavelength Hosing Modulation of a High-Intensity Laser Pulse in Underdense Plasma, PHYSICAL REVIEW LETTERS, Vol: 105, ISSN: 0031-9007
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- Citations: 21
Bellei C, Nagel SR, Kar S, et al., 2010, Micron-scale fast electron filaments and recirculation determined from rear-side optical emission in high-intensity laser-solid interactions, NEW JOURNAL OF PHYSICS, Vol: 12, ISSN: 1367-2630
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- Citations: 14
Trines RMGM, Bingham R, Najmudin Z, et al., 2010, Electron trapping and acceleration on a downward density ramp: a two-stage approach, NEW JOURNAL OF PHYSICS, Vol: 12, ISSN: 1367-2630
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- Citations: 16
Nilson PM, Mangles SPD, Willingale L, et al., 2010, Plasma cavitation in ultraintense laser interactions with underdense helium plasmas, NEW JOURNAL OF PHYSICS, Vol: 12, ISSN: 1367-2630
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- Citations: 18
Ibbotson TPA, Bourgeois N, Rowlands-Rees TP, et al., 2010, Investigation of the role of plasma channels as waveguides for laser-wakefield accelerators, NEW JOURNAL OF PHYSICS, Vol: 12, ISSN: 1367-2630
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- Citations: 19
Ibbotson TPA, Bourgeois N, Rowlands-Rees TP, et al., 2010, Laser-wakefield acceleration of electron beams in a low density plasma channel, PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, Vol: 13, ISSN: 1098-4402
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- Citations: 41
Kneip S, McGuffey C, Chvykov V, et al., 2010, Synchrotron Radiation from a Laser Plasma Accelerator in the Bubble Regime, 14th Workshop on Advanced Accelerator Concepts, Publisher: AMER INST PHYSICS, Pages: 185-+, ISSN: 0094-243X
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- Citations: 1
Matsuoka T, Kneip S, McGuffey C, et al., 2010, Synchrotron x-ray radiation from laser wakefield accelerated electron beams in a plasma channel, SIXTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS, PARTS 1-4, Vol: 244, ISSN: 1742-6588
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- Citations: 3
Nilson PM, Mangles SPD, Willingale L, et al., 2009, Generation of Ultrahigh-Velocity Ionizing Shocks with Petawatt-Class Laser Pulses, PHYSICAL REVIEW LETTERS, Vol: 103, ISSN: 0031-9007
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- Citations: 19
Mangles SPD, Kneip S, McGuffey C, et al., 2009, Coherent betatron radiation from laser-wakefield accelerated bunches of monoenergetic electrons
X-rays generated by 0.1 - 0.5 GeV electron beams generated using a 100 TW laser are shown to have a low emittance, be spatially coherent and have a peak brightness comparable to 3rd generation synchrotron sources. © 2009 OSA.
Bellei C, Nagel SR, Kneip S, et al., 2009, Sub-micron fast electron filamentation in high intensity laser-solid interactions, ISSN: 0730-9244
Mangles SPD, Genoud G, Kneip S, et al., 2009, Controlling the spectrum of x-rays generated in a laser-plasma accelerator by tailoring the laser wavefront, Applied Physics Letters, Vol: 95
Kneip S, Nagel SR, Martins SF, et al., 2009, Near-GeV Acceleration of Electrons by a Nonlinear Plasma Wave Driven by a Self-Guided Laser Pulse (vol 103, art no 035002, 2009), PHYSICAL REVIEW LETTERS, Vol: 103, ISSN: 0031-9007
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- Citations: 1
Kneip S, Nagel SR, Martins SF, et al., 2009, Near-GeV Acceleration of Electrons by a Nonlinear Plasma Wave Driven by a Self-Guided Laser Pulse, PHYSICAL REVIEW LETTERS, Vol: 103, ISSN: 0031-9007
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- Citations: 245
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