Fig. 5: Schematic illustration of the GCG nanowire fabrication process.

a A GST nanowire was placed above a graphene sheet on scotch tape. b The tape with the graphene and GST nanowire was attached to an SOI substrate. c By removing the tape in a 4-methyl-2-pentanone solution, a GCG nanowire on a SOI substrate was obtained. d The graphene sheet was cut along the nanowire by a nanosecond pulse laser propagating through the tapered fiber. e The GCG nanowire was removed from the wafer by the tapered fiber