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Fabrication of Light‐Guiding Core/Sheath Fibers by Coaxial Electrospinning
Author(s) -
Kwak Giseop,
Lee Ga Hyoung,
Shim Shanghun,
Yoon KeunByoung
Publication year - 2008
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200800065
Subject(s) - core (optical fiber) , materials science , coaxial , optical fiber , electrospinning , fiber , fabrication , scanning electron microscope , optics , polymer , refractive index , composite material , optoelectronics , physics , medicine , alternative medicine , pathology , electrical engineering , engineering
Light‐guiding core/sheath fibers are fabricated from two different refractive index (RI) polymers by coaxial electrospinning. The morphology and fiber diameter are analyzed with scanning electron and fluorescence microscopies. It is found that the diameter of the core and the thickness of the sheath could be varied from 100 to 400 nm by changing the concentration of the outer solution. The incorporation of a chromophore into the inner material confirmed the uniformity of the core/sheath structure in long segments of the fibers. The boundary is clearly seen: the core diameter and the thickness of the sheath are constant along the fiber axis in fluorescence images. The ejected beam is circular and light‐guided along the fiber axis as in an optical fiber.