Demonstration of stable long-term operation of a kilohertz laser-plasma accelerator
Lucas Rovige,Julius Huijts,Igor Andriyash,Aline Vernier,Vidmantas Tomkus,Valdas Girdauskas,Gediminas Račiukaitis,Juozas Dudutis,Valdemar Stankevič,Paulius Gečys,Marie Ouillé,Zhao Cheng,Rodrigo Lopez-Martens,Jérôme Faure +13 more
TLDR
In this article, the stable and continuous operation of a kilohertz laser-plasma accelerator was reported, where electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp.Abstract:
We report on the stable and continuous operation of a kilohertz laser-plasma accelerator. Electron bunches with 2.6 pC charge and 2.5 MeV peak energy were generated via injection and trapping in a downward plasma density ramp. This density transition was produced in a specially designed asymmetrically shocked gas jet. The reproducibility of the electron source was also assessed over a period of a week and found to be satisfactory with similar values of the beam charge and energy. Particle in cell simulations confirm the role of the shock and the density transition in the electron injection mechanism. These results show that the reproducibility and stability of the laser-plasma accelerator are greatly enhanced on the long-term scale when using a robust scheme for density gradient injection.read more
Citations
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Laser-Accelerated, Low-Divergence 15-MeV Quasimonoenergetic Electron Bunches at 1 kHz
TL;DR: In this article, the authors demonstrate laser wakefield acceleration of quasi-monoenergetic electron bunches up to 15 MeV at 1 kHz repetition rate with 2.5 pC charge per bunch and a core with < 7 mrad beam divergence.
Journal ArticleDOI
Carrier-envelope phase effects in Laser Wakefield Acceleration with near-single-cycle pulses
TL;DR: In this article, the authors show that the particle response becomes asymmetric in the plane of laser polarization, and dependent on the carrier-envelope phase (CEP) of the laser pulse.
Journal ArticleDOI
Identifying observable carrier-envelope phase effects in laser wakefield acceleration with near-single-cycle pulses
TL;DR: In this paper, the authors show how the plasma response becomes asymmetric in the plane of laser polarization, and dependent on the carrier-envelope phase (CEP) of the laser pulse.
Journal ArticleDOI
Optimization and stabilization of a kilohertz laser-plasma accelerator
Lucas Rovige,Julius Huijts,Igor Andriyash,Aline Vernier,Marie Ouillé,Zhao Cheng,T. Asai,Y. Fukuda,Vidmantas Tomkus,Valdas Girdauskas,Gediminas Račiukaitis,Juozas Dudutis,Valdemar Stankevič,Paulius Gečys,Rodrigo Lopez-Martens,Jérôme Faure +15 more
TL;DR: In this paper, the authors present a systematic study in which a large range of pulse durations and plasma densities were investigated through continuous tuning of the laser spectral bandwidth, and two laser-plasma accelerator (LPA) processes can be distinguished, where beams of the highest quality, with a charge of 5.4 pC and a spectrum peaked at 2.5
Journal ArticleDOI
Optimization and stabilization of a kilohertz laser-plasma accelerator
Lucas Rovige,Julius Huijts,Igor Andriyash,Aline Vernier,Marie Ouillé,Zhao Cheng,T. Asai,Y. Fukuda,Vidmantas Tomkus,Valdas Girdauskas,Gediminas Račiukaitis,Juozas Dudutis,Valdemar Stankevič,Paulius Gečys,Rodrigo Lopez-Martens,Jérôme Faure +15 more
TL;DR: In this paper, the authors present a systematic study in which a large range of pulse durations and plasma densities were investigated through continuous tuning of the laser spectral bandwidth, and two LPA processes can be distinguished, where beams of the highest quality, with 5.4 pC charge and a spectrum peaked at 2-2.5 MeV are obtained with short pulses propagating in moderate plasmas densities.
References
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