Laser phase effect on asymmetric harmonic distribution in H
Feng Li-Qiang1, 2, †, Li Wen-Liang1, 2, 3, Liu Hui1, ‡
       

(color online) (a) Laser profile of 10-fs/800-nm multi-cycle pulse. Time–frequency analyses of the MHHG from H driven by the above 10-fs/800-nm pulse, (b) negative-H and (c) positive-H.