Abstract

This paper reports on an efficient and convenient method of patterning nanostructures on the cleaved facet of an optical fiber. The fabrication method utilizes ultraviolet (UV) assisted nanoimprint lithography in which the fiber tip is pressed against a stamp carrying nanoscale patterns, and then is exposed to UV radiation. The novelty of this work lies in utilizing simpler fabrication steps with better control over angle of contact at the fiber tip, which leads to rapid formation of nanostructures with well-defined features. An array of nanoposts are patterned at fiber tip and coated with titanium oxide to work as a guided mode resonant (GMR) device. The sensitivity of the fiber-tip GMR device to surrounding refractive index is 183.3 nm per refractive index unit. The proposed nanofabrication method offers a promising approach to develop remote fiber-optic sensors with intrinsic optical beam alignment for detecting the presence of subtle concentration of analytes at the fiber tip.

Full Text

Published Version

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.