Surface plasmon polariton waveguides with subwavelength confinement*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11704266 and 11774245), the Fok Ying Tung Education Foundation, China (Grant No. 151010), the Scientific Research Base Development Program of Beijing Municipal Commission of Education, China, the General Foundation of Beijing Municipal Commission of Education, China (Grant No. KM201810028006), and the Training Program of the Major Research Plan of Capital Normal University, China.
Yang Longkun1, Li Pan1, Wang Hancong2, Li Zhipeng1, †
       

(color online) (a) Nanowire networks as an optical logic gate. Diagram of a NOR logic gate built using cascaded OR and NOT gates (upper) and optical image of the designed structure (lower), reproduced from Ref. [107]. (b) (i) Optical image of a nanowire network with two input terminals (I1 and I2) and two output terminals (O1 and O2). (ii) and (iii) QD fluorescence images for two phase differences corresponding to the strongest output at terminal O1 and O2, respectively, reproduced from Ref. [108]. (c) SPP router by SOI of light, reproduced from Ref. [109]. (d) and(e) SPP wave router using V-groove, reproduced from Ref. [64]. (f) Image of a spoof SPP router. (g) and (h) Spoof SPP field measured on the router of (f), reproduced from Ref. [76].