Open AccessLiquid core photonic crystal fiber with low-refractive-index liquids for optofluidic applications
Author(s) -
Jiyoung Park,
Doo Eui Kang,
Bjorn Paulson,
Tavakol Nazari,
Kyunghwan Oh
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.017320
Subject(s) - materials science , photonic crystal fiber , refractive index , optics , liquid crystal , normalized frequency (unit) , step index profile , core (optical fiber) , microstructured optical fiber , optical fiber , graded index fiber , dispersion (optics) , wavelength , optoelectronics , fiber optic sensor , physics , composite material , phase locked loop , frequency synthesizer , phase noise
A defectless hexagonal air-silica photonic crystal fiber (PCF) structure with its central hole selectively filled by a low-refractive-index liquid is numerically analyzed. Despite the fact that the refractive index of the liquid is significantly lower than that of silica, we found an optimal range of waveguide parameters to ensure light guidance through the liquid core in the fundamental mode, maximizing the light-liquid interaction over a desired wavelength range. Using the vectorial finite element method (FEM), we report detailed parametric studies in terms of the effective index, chromatic dispersion, optical loss, and modal intensity distribution of the liquid core PCFs.