Optical fiber meta-tips

Maria Principe, Alberto Micco, Alessio Crescitelli, Giuseppe Castaldi, Marco Consales, Emanuela Esposito, Vera La Ferrara, Vincenzo Galdi, Andrea Cusano

Research output: Contribution to conferencePaper

1 Citation (Scopus)


We report on the first example of a "meta-tip" configuration that integrates a metasurface on the tip of an optical fiber. Our proposed design is based on an inverted-Babinet plasmonic metasurface obtained by patterning (via focused ion beam) a thin gold film deposited on the tip of an optical fiber, so as to realize an array of rectangular aperture nanoantennas with spatially modulated sizes. By properly tuning the resonances of the aperture nanoantennas, abrupt variations can be impressed in the field wavefront and polarization. We fabricated and characterized several proof-of-principle prototypes operating an near-infrared wavelengths, and implementing the beam-steering (with various angles) of the cross-polarized component, as well as the excitation of surface waves. Our results pave the way to the integration of the exceptional field-manipulation capabilities enabled by metasurfaces with the versatility and ubiquity of fiber-optics technological platforms.
Original languageEnglish
Publication statusPublished - 2016
EventMetamaterials X - Brussels, Belgium
Duration: 1 Jan 2016 → …


ConferenceMetamaterials X
Period1/1/16 → …


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Principe, M., Micco, A., Crescitelli, A., Castaldi, G., Consales, M., Esposito, E., ... Cusano, A. (2016). Optical fiber meta-tips. Paper presented at Metamaterials X, Brussels, Belgium. https://doi.org/10.1117/12.2227337