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Radiation emission in laser-wakefields driven by structured laser pulses with OAM
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- Martins, Joana, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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A. Fonseca, Ricardo (author)
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Vieira, Jorge (author)
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: 3rd European Advanced Accelerator Concepts Workshop, 24-30 September 2017, La Biodola, Isola d'Elba, Italy.
- Related links:
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Abstract
Subject headings
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- Betatron radiation from laser-wakefield accelerators (LWFA) has shown great potential as a source of high brightness ultra-short radiation. In typical experimental and simulation LWFA setups, the driver is a single laser pulse with a Gaussian profile. However, the recent advances in the field of structured light, in particular in the study and production of light pulses with orbital angular momentum, for example Laguerre-Gaussian modes, has opened new prospects for laser-wakefield acceleration.In this work, we explore LWFA driven by structured pulses comprised of Laguerre-Gaussian modes. We show that by using pairs of Laguerre-Gaussian modes, multiple wakefields can be driven with non-trivial dynamics. We investigate the possibility of driving pairs of wakefields rotating around the propagation axis though three-dimensional particle-in-cell simulations. Using a post-processing radiation diagnostic and the trajectories of bunch electrons taken from simulations, we examine the properties of the emitted radiation taking into account coherence effects.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- orbital angular momentum
- laser-wakefield
- betatron
Publication and Content Type
- kon (subject category)
- vet (subject category)
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