▎ 摘　　要

NOVELTY - Optical logic device has two symmetrically distributed binary RS photonic crystals and two graphene single layers. The binary RS photosolar crystal is provided with multiple first dielectric layers and multiple second dielectrical layers, where the first die-lectric layer is marked as H, the second die-electric layer and the graphene single layer are marked as L, and the G-graphene single layer is labeled as G, the binary RS photo-crystal is expressed as HHHLHHLH, and the optical logic device is expressed in HHHHLHH1GH2H2GH1LHHLHHH. The H1GH2 and H2GH1 represent a three-layer structure formed by embedding the graphene-single layer in the first electrode layer. The thickness of the first and second electrode layers is 1/4 of each optical wavelength. The first and the second dielectric layer are two uniform dielectric sheets with different refractive indexes. The photonic crystal based on lutin-sipinolinois realizes low-threshold optical bistable. USE - Optical logic device based on Rudin-Shapiro photonic crystal used in all-optical communication. Uses include but are not limited to transmission, relay, decision, timing, amplifying and shaping. ADVANTAGE - The optical logic device reduces decision threshold of the optical logic device, enhances optical bi-stable effect of the graphene and third-order nonlinear effect of graphene, so as to realize low threshold optical bistable state. The upper and lower threshold value of optical bistable in the Rudin-Shapiro photonic crystal structure increases with the increase of the chemical potential and incident wavelength of graphene, and further decreases interval between the logic 1 decision threshold and the logic 0 decision threshold. DETAILED DESCRIPTION - Optical logic device has two symmetrically distributed binary RS photonic crystals and two graphene single layers. The binary RS photosolar crystal is provided with multiple first dielectric layers and multiple second dielectrical layers, where the first die-lectric layer is marked as H, the second die-electric layer and the graphene single layer are marked as L, and the G-graphene single layer is labeled as G, the binary RS photo-crystal is expressed as HHHLHHLH, and the optical logic device is expressed in HHHHLHH1GH2H2GH1LHHLHHH. The H1GH2 and H2GH1 represent a three-layer structure formed by embedding the graphene-single layer in the first electrode layer. The thickness of the first and second electrode layers is 1/4 of each optical wavelength. The first and the second dielectric layer are two uniform dielectric sheets with different refractive indexes. The photonic crystal based on Rudin-Shapiro realizes low-threshold optical bistable. The upper and lower thresholds of the bistable corresponded to the decision thresholds of the optical memory logic 1 and logic 0 respectively.