Photonic nanospikes can be used to efficiently launch light into hollow-core photonic crystal fibers (HCPFC). Mode-matching and optomechanical trapping of the nanospike (NS) at the center of the HCPCF can be achieved by a convenient design of its geometric profile. The goal of this project is to study the light propagation in silica nanowires and to develop the NS fabrication process. We optimized the structure to achieve a mechanically robust NS only 16 mm long and yet adiabatic.We have also made progress on fabrication, achieving nanospikes with 438nm.