✦ LIBER ✦

Surface plasmon resonance on gratings as a novel means for gas sensing

✍ Scribed by P.S. Vukusic; G.P. Bryan-Brown; J.R. Sambles

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 530 KB
Volume: 8
Category: Article
ISSN: 0925-4005
DOI: 10.1016/0925-4005(92)80173-u

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✦ Synopsis

A novel technique for sensing small changes in dielectric constant using the phenomenon of surface plasmon resonance has been developed. The principle of this technique is based on the measurement of a resonance maximum on a background of weak signal, giving improved signal-to-noise ratios over previously reported surface plasmon techniques. The sensing of the condensation of several organic vapours onto a silver surface is used to demonstrate the effectiveness of the technique. Its potential as a hand-held in-field gas sensor is discussed.

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