In-Fiber Graphene-hBN Polarizer With Enhanced Performance and Bandwidth

In-Fiber Graphene-hBN Polarizer With Enhanced Performance and Bandwidth

Blog Article

Graphene and hBN as two-dimensional materials with excellent optical properties can be combined with other materials.In this paper, graphene and hBN is sequentially deposited on the surface of the silicon-core fiber to serve as transverse magnetic (TM) or transverse electric (TE) mode polarizer alternatively depending on the input wavelength and the diameter of the silicon-core.The Gr/hBN stack structure on the surface silicon-core microfiber is used not chorulon hcg only for enlarging the wavelength bandwidth, such as from 350 diamond painting strand en zee nm (TM) and 670 nm (TE) for double Gr/hBN stack to 300 nm (TM) and 550 nm (TE) for single Gr/hBN stack, but also enhancing the light-graphene interaction to multiply the polarization extinction ratio, as compared with that of monolayer graphene.Small radius silicon core could provide large light-graphene interaction for flat extinction ratio with different thickness of the hBN.