Spectral modulation of third-harmonic generation by molecular alignment and preformed plasma
Li Min1, Li An-Yuan1, He Bo-Qu2, Yuan Shuai1, Zeng He-Ping1, 2, †,
       

(a) Modulation of TH intensity and spectrum at different molecular alignment revivals. (b) The intensity of TH central wavelength varying with the molecular alignment revival. The unit a.u. is short for arbitrary units.