Abstract
In this paper, we propose magnetically-controlled logic gates of graphene plasmons based on non-reciprocal coupling within the multilayer graphene waveguide structure. The magnetooptical effect of semiconductor substrate leads to the difference in modal indices of graphene plasmons in opposite directions and non-reciprocal coupling, which is investigated by both coupled mode theory (CMT) and finite elements methods (FEM). Such a mechanism enables the design of magnetically- controlled not logic gate, whose output logic can be inversed by reversing the plasmons propagation directions. Furthermore, according to the Boolean algebra, we design two functional logic gates performing as or ( and ) logic gates for one direction of input plasmons, while nand ( nor ) logic gates for the reversed input direction. Minimum extinction ratios as 13.6 or 17.5 dB can be obtained for or ( nand ) or and ( nor ) logic gate. The proposed magnetically-controlled logic gates may provide new inspiration to non-reciprocal graphene plasmons devices.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Journal of Selected Topics in Quantum Electronics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
