Aberration-free high-harmonic source generated with a two-colour field G. Lambert, F. Tissandier, J. Gautier, C. P. Hauri, P. Zeitoun, C. Valentin, T. Marchenko, J.-P. Goddet, M. Ribière, A. Sardinha et al. (5 more) EPL, 89 2 (2010) 24001 Published online: 29 January 2010 DOI: 10.1209/0295-5075/89/24001