High-reflectivity high-contrast grating focusing reflector on silicon-on-insulator wafer
Fang Wenjing1, 2, Huang Yongqing1, 2, †, 
, Duan Xiaofeng1, 2, Liu Kai1, 2, Fei Jiarui1, 2, Ren Xiaomin1, 2
, Duan Xiaofeng1, 2, Liu Kai1, 2, Fei Jiarui1, 2, Ren Xiaomin1, 2 (a) Reflectivity and (b) phase shift of reflected light as a function of grating period and the grating bar width of periodic grating at wavelength of 1550 nm.
