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We study massive Dirac fermion tunneling through time periodic potential in asilicene-based N-TP-N junction, where Ns are normal silicene regions and TP isthe time periodic potential barrier. The fermions would absorb or emit photonsdue to the presence of the Floquet sidebands created in the TP. The nearlyperfect spin-valley-sideband filtering is predicted. Applying only the exchangefield leads to just only the electron absorbing a single photon almost purelyallowed to tunnel through the junction for the large electric field. Reversingdirection of electric field can select spin of the allowed electron. In thecase of applying only off-resonant circularly polarized light, just only theelectron absorbing a single photon with spin up, is almost purely allowed totunnel through the junction. The valley is also selected by reversing directionof the electric field. The controllable sideband channel may be applicable forsideband-based spin-valleytronics.

Nearly pure spin-valley sideband tunneling in silicene: effect of interplay of time periodic potential barrier and spin-valley-dependent Dirac mass