Low-power electro–optic phase modulator based on multilayer cgraphene/silicon nitride waveguide

Ji Lanting^{1, 2}, Chen Wei¹, Gao Yang¹, Xu Yan¹, Wu Chi², Wang Xibin¹, Yi Yunji¹, Li Baohua¹, Sun Xiaoqiang^{1, †}, Zhang Daming¹

Cross-section of (a) two-layer, (c) four-layer, and (e) six-layer GSNW configurations. Panels (b), (d), and (f) show field distributions of panels (a), (c), and (e), respectively.