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Proceedings Paper

Waveguiding properties of individual electrospun polymer nanofibers
Author(s): Yuya Ishii; Ryohei Kaminose; Mitsuo Fukuda
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Paper Abstract

Optical circuits are needed to achieve high-speed, high-capacity information processing. An optical waveguide is an essential element in optical circuits. Electrospun polymer fibers have diameters in the nanometer range and high aspect ratios, so they are prime candidates for small waveguides. In this work, we fabricate uniform electrospun polymer nanofibers and characterize their optical waveguiding properties. Poly(methyl methacrylate) (PMMA) solutions of different concentration that contain a small amount of Nile Blue A perchlorate (NBA) are electrospun. Uniform PMMA/NBA nanofibers are obtained from the 10 wt% solution. The fibers are covered with transparent cladding and their ends cut vertically. A laser beam with a wavelength of 533 nm is irradiated onto the fiber from the direction vertical to the fiber axis so that it scans along the fiber. Photoluminescence (PL) at the end face of individual fibers is then measured. The PL intensity decreases with increasing distance (d) between the end face of a fiber and irradiating point of the laser beam as ~exp(-αd) with a loss coefficient (α). Measurements of five individual fibers reveal α is in the range of 17–75 cm-1.

Paper Details

Date Published: 10 September 2013
PDF: 7 pages
Proc. SPIE 8827, Optical Processes in Organic Materials and Nanostructures II, 882708 (10 September 2013); doi: 10.1117/12.2022813
Show Author Affiliations
Yuya Ishii, Toyohashi Univ. of Technology (Japan)
Ryohei Kaminose, Toyohashi Univ. of Technology (Japan)
Mitsuo Fukuda, Toyohashi Univ. of Technology (Japan)

Published in SPIE Proceedings Vol. 8827:
Optical Processes in Organic Materials and Nanostructures II
Manfred Eich; Jean-Michel Nunzi; Rachel Jakubiak, Editor(s)

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