Guided wave sensing of polyelectrolyte multilayers

被引:18
作者
Horvath, R [1 ]
Pedersen, HC
Cuisinier, FJG
机构
[1] Riso Natl Lab, Opt & Plasma Res Dept, DK-4000 Roskilde, Denmark
[2] Univ Montpellier, UFR Odontol, F-34193 Montpellier 5, France
关键词
D O I
10.1063/1.2184756
中图分类号
O59 [应用物理学];
学科分类号
摘要
A planar optical waveguide configuration is proposed to monitor the buildup of thick polyelectrolyte multilayers on the surface of the waveguide in aqueous solutions. Instead of detecting the layer by the electromagnetic evanescent field the polyelectrolyte layer acts as an additional waveguiding film that is sensed by guided waves instead of evanescent waves. This leads to a considerably improved sensitivity and dynamic range.
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页数:3
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