Beam divergence of high-order harmonics generated in the few-optical cycle regime C. Altucci, R. Bruzzese, C. de Lisio, V. Tosa, P. Barbiero, L. Poletto, G. Tondello, P. Villoresi, M. Nisoli, S. Stagira, G. Cerullo, S. De Silvestri et O. SveltoJ. Phys. IV France, 11 PR2 (2001) Pr2-351-Pr2-354DOI: https://doi.org/10.1051/jp4:2001268