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 temporal profiles of the as pulses generated by superposing the harmonics (a) from 28th to 59th order and (b) from 35th to 48th order for the homogeneous case ( ε = 0 a.u.). The temporal profiles of the as pulses generated by superposing the harmonics (c) from 51st to 109th order and (d) from 60th to 85th order for the inhomogeneous case ( ε = 0.0048 a.u.). o.c. denotes the optical cycle.