0 1 2 3 4 5 6 7 8 9 10 0 0.5 1 1.5 2 2.5 3 3.5 4 Photon energy (eV) Cross section (a.u.) d=4a$_{0}$ 10 20 30 40 50 60 70 0 0.05 0.1 0.15 0.2 0.25 Photon energy (eV) Cross section (a.u.) $_{L}$=0 $_{L}$= /4 $_{L}$= /2 FIG. 2: The photodetachment cross section of the triatomic anion at d = 4 a$_{0}$ and the laser polarization direction θ L are respectively equal to 0, π $_{4}$, π $_{2}$. The inset provides a hint of oscillation for θ L = 0 and θ L = π $_{4}$. 12