title: Numerical and experimental study of microfluidic devices in step-index optical fibers.
abstract: Microfluidic devices composed of microslits in step-index optical fibers are thoroughly investigated. Numerical simulations are performed to explain scattering and power loss in such devices. Experimental results based on microslits fabricated by femtosecond laser processing corroborate theoretical data. Dependency of the device performance on the refractive index of fluid in the slit is further utilized to construct a refractive index sensor and an in-fiber attenuator.
authors.affiliation: Photonics Research Group, Aston University, Birmingham, UK. j.petrovic1@physics.ox.ac.uk
authors.forename: Jovana
authors.initials: J
authors.lastname: Petrovic
authors.forename: Yicheng
authors.initials: Y
authors.lastname: Lai
authors.forename: Ian
authors.initials: I
authors.lastname: Bennion