  We investigate the persistent orientation of asymmetric-top molecules induced
by time-delayed THz pulses that are either collinearly or cross polarized. Our
theoretical and numerical results demonstrate that the orthogonal configuration
outperforms the collinear one, and a significant degree of persistent
orientation - approximately 10% at 5 K and nearly 3% at room temperature - may
be achieved through parameter optimization. The dependence of the persistent
orientation factor on temperature and field parameters is studied in detail.
The proposed application of two orthogonally polarized THz pulses is both
practical and efficient. Its applicability under standard laboratory conditions
lays a solid foundation for future experimental realization of THz-induced
persistent molecular orientation.
