Selection of quantum path in high-order harmonics and isolated sub-100 attosecond generation in few-cycle spatially inhomogeneous laser fields*
Ge Xin-Lei, Du Hui, Wang Qun, Guo Jing†, Liu Xue-Shen‡
       
The variation of the cutoff position of HHG as a function of inhomogeneity ε of the driving field between 0.0 a.u. and 0.005 a.u.