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Grating couplers as chemical sensors: a new optical configuration

โœ Scribed by A. Brandenburg; A. Gombert


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
787 KB
Volume
17
Category
Article
ISSN
0925-4005

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Output grating couplers on planar wavegu
โœ W. Lukosz; Ph. M. Nellen; Ch. Stamm; P. Weiss ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 375 KB

We have demonstrated that output grating couplers on thin Si02-TiOz waveguides are sensors which respond (i) with sub-monomolecular sensitivity to the adsorption of molecules out of a gaseous or liquid sample covering the waveguide in the grating region, and (ii) to changes in the refractive index o