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 ... https://parisnaturalfoodes.shop/product-category/astragalus/