High-order harmonic generation in a two-color strong laser field with Bohmian trajectory theory<xref rid="cpb_27_7_073204fn1" ref-type="fn">*</xref> <fn id="cpb_27_7_073204fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11334009, 11474321, and 11527807).</p> </fn>

High-order harmonic generation in a two-color strong laser field with Bohmian trajectory theory* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 11334009, 11474321, and 11527807).

Huang Yi-Yi^{1, 2}, Lai Xuan-Yang^{1, †}, Liu Xiao-Jun^{1, ‡}

(color online) (a)–(d) Two-color laser fields with inversion symmetry at four different relative phases in the time regions of 3T < t < 5T. (e)–(h) HHG spectra simulated with TDSE (black lines) and the central Bohmian trajectory (red lines). Insets (1)–(4) show the corresponding central Bohmian trajectories. Another inset in panel (e) shows the enlargement of the harmonics from 51th to 59th order in panel (e). The laser intensity is I = 1.0 × 10¹⁴ W/cm² with β = 1, r = 3, s = 5, and ω = 0.019 a.u. in Eq. (3).