Simulation of surface-modified porous silicon photonic crystals for biosensing applications

详细信息	查看全文 | 推荐本文 |

• 作者：I. Suá ; rez^a ; ^{isaac.suarez@uv.es} ; V. Chirvony^a ; D. Hill^b ; J. Martí ; nez-Pastor^a
• 关键词：Porous silicon ; Microcavity ; Rugate filter ; Biosensor ; Polymer
• 刊名：Photonics and Nanostructures - Fundamentals and Applications
• 出版年：2012
• 期刊代码：120_15694410
• 类别：ms
• 出版时间：June, 2012
• 卷：10
• 期：3
• 页码：304-311
• 文件大小：1453 K

摘要

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.