Date:
Wed, 10/01/201812:00-13:30
Location:
Danciger B building, Seminar room
Lecturer: V. Malka, Laboratoire d’Optique Appliquée, CNRS, Ecole Polytechnique, ENSTA Paristech, Université Paris-Saclay, Palaiseau, France
Weizmann Institute of Science, Rehovot, Israel
Abstract:
Laser Plasma Accelerators (LPA) rely on the control of the electronic motion with intense laser pulses [1]. The manipulation of electrons with intense laser pulses allows a fine mapping of the longitudinal and radial components of giant electric fields with values that can exceed hundred of GV/m [2]. This control is crucial since it is now possible to optimize laser plasma accelerators both, for accelerating charged ultra-short and ultra-bright energetic particle or radiation beams.
To illustrate the beauty of laser plasma accelerators I will show, how by changing the density profile of the gas target, one can improve the quality of the electron beam, its stability [3] and its energy gain [4], or by playing with the radial field one can reduce its divergence [5].
I’ll then show how by controlling the quiver motion of relativistic electrons intense and bright X-rays beams are produced in a compact and elegant way [6-8]. Finally, I’ll show some examples of applications.
[1] V. Malka, Europhysics Letters, 115 (2016) 54001
[2] V. Malka et al., Science 22, 298, Nov. (2002)
[3] E. Guillaume et al., Phys. Rev. Lett. 115, 155002 (2015)
[4] C. Thaury Scientific Report, 10.1038, srep16310, Nov. 9 (2015)
[5] C. Thaury et al., Nature Comm. 6, 6860 (2015)
[6] K. Ta Phuoc et al., Nature Photonics 6, 308-311 (2012)
[7] S. Corde et al., Review of Modern Phys. 85 (2013)
[8] I. Andriyash et al., Nature Comm. 5, 4736 (2014)
Weizmann Institute of Science, Rehovot, Israel
Abstract:
Laser Plasma Accelerators (LPA) rely on the control of the electronic motion with intense laser pulses [1]. The manipulation of electrons with intense laser pulses allows a fine mapping of the longitudinal and radial components of giant electric fields with values that can exceed hundred of GV/m [2]. This control is crucial since it is now possible to optimize laser plasma accelerators both, for accelerating charged ultra-short and ultra-bright energetic particle or radiation beams.
To illustrate the beauty of laser plasma accelerators I will show, how by changing the density profile of the gas target, one can improve the quality of the electron beam, its stability [3] and its energy gain [4], or by playing with the radial field one can reduce its divergence [5].
I’ll then show how by controlling the quiver motion of relativistic electrons intense and bright X-rays beams are produced in a compact and elegant way [6-8]. Finally, I’ll show some examples of applications.
[1] V. Malka, Europhysics Letters, 115 (2016) 54001
[2] V. Malka et al., Science 22, 298, Nov. (2002)
[3] E. Guillaume et al., Phys. Rev. Lett. 115, 155002 (2015)
[4] C. Thaury Scientific Report, 10.1038, srep16310, Nov. 9 (2015)
[5] C. Thaury et al., Nature Comm. 6, 6860 (2015)
[6] K. Ta Phuoc et al., Nature Photonics 6, 308-311 (2012)
[7] S. Corde et al., Review of Modern Phys. 85 (2013)
[8] I. Andriyash et al., Nature Comm. 5, 4736 (2014)