Fig. 5: Active control of the beam splitting ratio.
From: All-optical active THz metasurfaces for ultrafast polarization switching and dynamic beam splitting
a Experimental and simulated cross-polarized transmission efficiency in the OFF state, and b the correlated co-polarized transmission efficiency. c Cross- (simulations in the ON and OFF states for comparison) and d co-polarized (experiment and simulation) transmission efficiencies in the ON state. e Resultant active modulation of the broadband beam splitting ratio between the co- (normal) and cross-polarized (deflected) components, and f the operating efficiency of the active beam splitter
