Nanophotonics biochemical sensors

将开发一种新的单片集成平台，用于构建基于光子的传感器，用于不同化合物（分析物）的生物和化学传感。该平台使用掺杂非晶硅沉积在磷化铟（InP）基材料上。InP材料用于制造传感器系统的光源和探测器等有源器件，而非晶硅材料用于制造基于纳米波导的分析仪，利用与待检测分析物的倏逝耦合。纳米多孔硅在非晶硅上的发展将被研究，以进一步增加光学模式与分析物的相互作用。生物和化学试剂在非晶硅表面的附着机理也将被研究。

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.