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IP-Dip-Based SPR Structure for Refractive Index Sensing of Liquid Analytes
| Content Provider | MDPI |
|---|---|
| Author | Urbancova, Petra Pudis, Dusan Goraus, Matej Kovac, Jaroslav |
| Copyright Year | 2021 |
| Description | In this paper, we present a two-dimensional surface plasmon resonance structure for refractive index sensing of liquid analytes. The polymer structure was designed with a period of 500 nm and prepared in a novel IP-Dip polymer by direct laser writing lithography based on a mechanism of two-photon absorption. The sample with a set of prepared IP-Dip structures was coated by 40 nm thin gold layer. The sample was encapsulated into a prototyped chip with inlet and outlet. The sensing properties were investigated by angular measurement using the prepared solutions of isopropyl alcohol in deionized water of different concentrations. Sensitivity of 478–617 nm per refractive index unit was achieved in angular arrangement at external angle of incidence of 20°. |
| Starting Page | 1163 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano11051163 |
| Journal | Nanomaterials |
| Issue Number | 5 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-29 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Telecommunications Surface Plasmon Resonance 2d Grating Structure Refractive Index Sensing |
| Content Type | Text |
| Resource Type | Article |
