Finally,light emission from porous Si, integration of Si-based LED with Si BJT,and hybrid integration of Si-based VCSEL with micro-lenses are also briefly discussed.

• 同时还对多孔Si 发光、Si 基发光二极管（LED） 与Si 双极晶体管（BJT） 集成、Si 基上垂直腔面发射激光器（VCSEL） 与微透镜的混合集成作了简要的介绍。