Selection of quantum path in high-order harmonics and isolated sub-100 attosecond generation in few-cycle spatially inhomogeneous laser fields<xref ref-type="fn" rid="cpb141972fn1">*</xref>

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 dependence of the harmonic order on the ionization time (the blue circular curve) and the emission time (the red triangle curve), and the dependence of the ionization probability on time (the solid green curve), (a) ε = 0 a.u., (b) ε = 0.003 a.u., (c) ε = 0.0048 a.u. A dotted black curve is used to guide the eye. o.c. denotes the optical cycle.