Nanophotonics biochemical sensors

将开发一种新的单片集成平台，以构建基于光子学的传感器，用于不同化合物（分析物）的生物和化学传感。该平台使用在磷化铟（InP）基材料上沉积掺杂非晶硅。InP材料用于创建有源器件，如用于传感器系统的光源和检测器，而非晶硅材料用于创建基于纳米波导的分析器，其使用与待检测的分析物的倏逝波耦合。将研究在非晶硅上开发纳米多孔硅，以进一步增加光学模式与分析物的相互作用。研究了生物和化学试剂在非晶硅表面的附着机理。

A new monolithic integration platform will be developed to build photonics based sensors for biological and chemical sensing of different compounds (analyte). The platform uses deposition of doped amorphous silicon on Indium Phosphide (InP) based materials. The InP materials are used to create the active devices like light sources and detectors for the sensor systems whereas the amorphous silicon material is used for creating nano-waveguide based analyzers using evanescent coupling with the analyte to be detected. Development of nanoporous silicon over the amorphous silicon will be investigated to further increase the interaction of the optical mode with the analyte. Surface attachment mechanism of biological and chemical agents on the amorphous silicon will also be studied.