Abstract
In this work realistic biosensing structures based on the integration of porous silicon photonic crystals with polymer coating technology are presented. Microcavities and rugate filters are chosen as the photonic crystal configuration. The deposition of a polymer layer on the pore walls of these structures is proposed to improve the selectivity and sensitivity of the sensing function. A complete effective refractive index model including the polymer layer, the target and external effects like silicon oxidation has been developed in order to accurately simulate the structures. It is expected that the proposed structures could be used as low cost, highly integrated and highly sensitive biological sensors.
| Original language | English |
|---|---|
| Pages (from-to) | 304-311 |
| Number of pages | 8 |
| Journal | Photonics and Nanostructures - Fundamentals and Applications |
| Volume | 10 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jun 2012 |
Funding
This work has been undertaken within the Positive project (257401) which is financially supported by 2.9 M&z.euro; from the EU through the seventh Framework Programme (FP7).
Keywords
- Biosensor
- Microcavity
- Polymer
- Porous silicon
- Rugate filter