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Tapered fiber nanoprobes: plasmonic nanopillars on tapered optical fiber tips for large EM enhancement

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Abstract

Employing finite difference time domain simulations, we demonstrate that electromagnetic field enhancement is substantially greater for tapered optical fibers with plasmonic nanostructures present on their tips as compared with non-tapered optical fibers having those plasmonic nanostructures, or with tapered optical fibers without the plasmonic nanostructures. We also carried out fabrication of plasmonic nanostructures on optical fiber tips.

© 2016 Optical Society of America

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