Abbreviated Journal Title
Appl. Phys. Lett.
capillarity; drops; flow instability; hydrodynamics; optical fibre; cladding; optical fibre fabrication; optical glass; optical polymers; PHOTONIC CRYSTAL FIBERS; FLOW; Physics, Applied
We report the observation of the Plateau-Rayleigh capillary instability during the tapering of a multi-material optical fiber. The fiber core is a glass, and the cladding is an amorphous polymer. The instability is manifested in the breakup of the core into a periodic string of size-tunable micro-scale droplets embedded along the fiber axis. The particle diameters may be tuned in the 1-20 mu m range through control of the tapering speed and temperature. Extending this approach to the fabrication of polymer and glass nanoparticles appears feasible.
Applied Physics Letters
Shabahang, S.; Kaufman, J. J.; Deng, D. S.; and Abouraddy, A. F., "Observation of the Plateau-Rayleigh capillary instability in multi-material optical fibers" (2011). Faculty Bibliography 2010s. 1886.