Single-pinhole diffraction of few-cycle isolated attosecond pulses with a two-color field

Wang Shaoyi¹, Han Dan¹, Dong Kegong¹, Wu Yuchi^{1, 2, †,}, Tan Fang¹, Zhu Bin¹, Fan Quanping¹, Cao Leifeng¹, Gu Yuqiu^{1, 2}

(a) Harmonic spectra after propagation (blue curve) and before propagation (red dashed curve). The spatial image and the near-field spatial profile of attosecond pulse at the exit of the medium are presented. The corresponding time profile and field are also shown in panels (d) and (e).