LAUSR

The honey structure of graphene is used in telecommunications, flexible displays, photonic devices, batteries, and electronic devices, where it achieves high heat dissipation efficiency. In order to obtain the high performances in the field of waveguide and sensor, we proposed a tunable plasmonic waveguide sensor based on periodic grating. The proposed device not only has the outstanding waveguide performance in gain threshold and propagation loss, which can reach 0.00745 dB/nm and 501 cm−1, respectively, but also the temperature sensitivity can achieve 0.28 nm/°C. The performances of waveguide and sensor can be tuned by changing the electronic characteristics of graphene, the structural parameters, and temperature, which indicate that the proposed device has considerable potential in ultra-speed plasma sensor devices, photonic integrated circuits, and tunable optical devices.