Fig. 4: Electro-optic logic operations and gates.
From: Nonlinear co-generation of graphene plasmons for optoelectronic logic operations
a Schematic design of the setup to obtain the logic outputs NOR, OR and AND using three bandpass filters (BPFs). Here VA and VB are two independent digital signals used to tune the graphene |EF | . b Results of the filtering in the |EF | − fsp space for the frequencies 7.5, 27 and 36 THz selected by the three BPFs and corresponding to the three logic operation of NOR, OR, AND. Dashed boxes: filtering bands of the three BPFs. c Example of logic operations measured at the outputs of the three BPFs, here the black curves plot the amplitudes of VA and VB, while red, yellow and blue curves show the output of the AND, OR, NOR gates.
