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Opt Lett. 2009 Sep 15;34(18):2724-6. doi: 10.1364/OL.34.002724.

Tapered fibers embedded in silica aerogel.

Author information

  • 1Centre for Photonics and Photonics Materials, Department of Physics, University of Bath, Bath BA2 7AY, UK. L.Xiao@bath.ac.uk

Abstract

We have embedded thin tapered fibers (with diameters down to 1 microm) in silica aerogel with low loss. The aerogel is rigid but behaves refractively like air, protecting the taper without disturbing light propagation along it. This enables a new class of fiber devices exploiting volume evanescent interactions with the aerogel itself or with dopants or gases in the pores.

PMID:
19756084
[PubMed]
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