Polarization‐directed nanophotonic routers based on two‐dimensional inorganic molecular crystals
Jiacheng Yao,
Xin Feng,
Tingting Zhang,
Fangqi Chen,
Zhenglong Zhang,
Hairong Zheng,
Tianyou Zhai,
Tao Ding
Affiliations
Jiacheng Yao
Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology Wuhan University Wuhan the People's Republic of China
Xin Feng
State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan the People's Republic of China
Tingting Zhang
Department of Mechanical Engineering The University of Texas at Dallas Richardson Texas USA
Fangqi Chen
Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology Wuhan University Wuhan the People's Republic of China
Zhenglong Zhang
School of Physics and Information Technology Shaanxi Normal University Xi'an the People's Republic of China
Hairong Zheng
School of Physics and Information Technology Shaanxi Normal University Xi'an the People's Republic of China
Tianyou Zhai
State Key Laboratory of Materials Processing and Die & Mould Technology, and School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan the People's Republic of China
Tao Ding
Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology Wuhan University Wuhan the People's Republic of China
Abstract Photonic and plasmonic hybrid nanostructures are the key solution for integrated nanophotonic circuits with ultracompact size but relative low loss. However, the poor tunability and modulability of conventional waveguides makes them cumbersome for optical multiplexing. Here we make use of two‐dimensional molecular crystal, α‐Sb2O3 as a dielectric waveguide via total internal reflection, which shows polarization‐sensitive modulation of the propagating beams due to its large polarization mode dispersion. Both experiments and simulations are performed to verify such concept. These Sb2O3 nanoflakes can be coupled with plasmonic nanowires to form nanophotonic beam splitters and routers which can be easily modulated by changing the polarization of the incidence. It thus provides a robust, exploitable and tunable platform for on‐chip nanophotonics.
