Low-power electro–optic phase modulator based on multilayer cgraphene/silicon nitride waveguide
Ji Lanting
1, 2
, Chen Wei
1
, Gao Yang
1
, Xu Yan
1
, Wu Chi
2
, Wang Xibin
1
, Yi Yunji
1
, Li Baohua
1
, Sun Xiaoqiang
1, †
, Zhang Daming
1
In-plane permittivity changes with Fermi level
μ
c
of graphene at 1550 nm.