Journal article
Multimode reverse-symmetry waveguide sensor for broad-range refractometry
A sensor design that uses a grating-coupled multimode planar optical waveguide for absolute detection of the refractive indices of liquids or gases is presented. The waveguide consists of a simple 50-microm-thick, free-standing glass plate with air beneath it and the sample to be analyzed on top of it.
This design offers a simple alternative to the well-known monomode waveguides, and, owing to its so-called reverse-symmetry configuration, a large detection range can be obtained.
Language: | English |
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Year: | 2003 |
Pages: | 2473-2475 |
ISSN: | 15394794 and 01469592 |
Types: | Journal article |
DOI: | 10.1364/ol.28.002473 |
ORCIDs: | Pedersen, H.C. |