Generation of isolated attosecond pulses in bowtie-shaped nanostructure with three-color spatially inhomogeneous fields*
Xue Shan, Du Hong-Chuan†, Xia Yue, Hu Bi-Tao‡
       
Classical ionization (blue dots) and recombination (red circles) paths in the cases of (a) the homogeneous field and (b) the inhomogeneous field at g = 18 nm.