1st European Advanced Accelerator Concepts Workshop

Laser Pulse Shaping for Multi-Bunches Photoinjectors

3 Jun 2013, 19:30

30m

Elena (Hotel Hermitage)

poster Wine and Poster Session Wine and Poster Session

Speaker

Fabio Villa (INFN - LNF)

Description

Plasma Wake Field Accelerators need electrons in a train of ps or sub-ps spaced multi-bunches (Muggli). THz sources (Shen) and pump-probe experiments (Zewail) are also interested in ps-spaced electron bunches. Main schemes used for laser multi-bunch generation involve birefringent crystals, interference of two delayed and stretched pulses or the use of a Dazzler and a 4f system with an amplitude mask in the Fourier plane (Boscolo). We are testing two schemes in Sparc_lab facility: one based on birefringent crystals (Petrillo) and the other is a new idea based on retardation of different spectral components of the laser pulse using quartz plates in the Fourier plane of a 4f system. P. Muggli, M.J. Hogan, C. R. Physique, v. 10, p. 116, 2009 A. H. Zewail, J. Phys. Chem. A, v. 104, p. 5660, 2000 Y. Shen et al., Phys. Rev. Lett., v. 107, p. 204801, 2011 M. Boscolo et al., Nucl. Instr. Meth. Phys. Res. section A, .v 577, p. 409, 2007 V. Petrillo et al., Observation of time-domain modulation of FEL pulses by multi-peaked electron energy spectrum, submitted to Phys. Rev. Lett.