Realisation of all photonic logic gates using plasmonic-based photonic structure through bandgap analysis

NOT, AND, OR, Ex-OR, NAND, NOR,and Ex-NOR logic gates have been realized in this work with the help of plasmonic-based two-dimensional triangular structure. The physics of the research manipulates with the photonic band gap analysis where the mathematics of the band calculation manipulates with plane wave expansion. Further both physics and mathematics of this communication relies on effective refractive index,the diameter of air holes and lattice constant of the structure to envisage optical logic gates. Moreover, the operation ofphotonic logic interacts with two signal of input (orange and red signals) where IR signal of 1.2 mu m is taken as a power supply signal. Lastly, the output of this paper discloses that the suitable combination of plasmonic-based triangular structures with suitable values of lattice constant and diameter of air holes bestows all type of logic gates, which could be future applications in the field of optical computing.