Shaimerdenova, Madina; Ayupova, Takhmina; Sypabekova, Marzhan; Tosi, Daniele
(MDPI, 2020-10-30)
In this work, we introduced fabrication and interrogation of simple and highly sensitive fiber-optic refractive index (RI) sensors based on ball resonators built on the tip of single-mode fibers. The probes have been ...