High harmonic attosecond pulse train amplification in a free electron laser

B W J Mc Neil (1) , N R Thompson (1, 2) , D J Dunning (1, 2) , B Sheehy (3)

1 Department of Physics
2 Cockcroft Institute
3 Collider-Accelerator Department

It is shown using three dimensional simulations that the temporal structure of an attosecond pulse train, such as that generated via High Harmonic generation in noble gases, may be retained in a Free Electron Laser amplifier through to saturation using a Mode Locked Optical Klystron configuration. At wavelengths of ∼12 nm, a train of attosecond pulses of widths ∼300 attoseconds with peak powers in excess of 1 GW are predicted.

Mots clés: 41.60.Cr; 42.65.Ky; 42.65.Re

B W J Mc Neil, N R Thompson, D J Dunning, B Sheehy. High harmonic attosecond pulse train amplification in a free electron laser. Journal of Physics B: Atomic, Molecular and Optical Physics, 2011, 44 (6), pp.65404. ⟨10.1088/0953-4075/44/6/065404⟩. ⟨hal-00604053⟩