The Numerical Calculation And Experimental Research About Photonic Crystal In Near-Infrared Wavelength Domain

Photonic Crystal experienced only less than double decades since been first developed.It has drawn much attention because of its promising application in molding the flow oflight, which can be used in optical communication and Photonic storage and computing.The research on Photonic Crystal has undergone rapid progresses both in theory andexperiment in recent years. In this paper, we used Finite Difference Time Domain Method(FDTD) to calculate difference types Photonic Crystal and research the fabricationprocedure of near-infrared PC-Slab Photonic Crystal with Micro-electronic-fabricationequipments and design, set and optimize the measurement systems.The procedure of how to calculate the band diagram of two dimensional PhotonicCrystal using FDTD Method combined with Bloch boundary was detailed discussed andthe method of how to set the Bloch boundary was also given. We detailed researched aboutthe relations between the FDTD grid resolution and the calculation results such as banddiagram, transmission and quality factor in two dimensional Photonic Crystal. We got thefull-band-gap through scanning the structure parameters in square and triangle latticePhotonic Crystal both been made of dielectric rods and air holes in dielectric background.We used FDTD method combined with super cell method to calculate the band diagram ofPhotonic Crystal with point defect and line defect, using field values stored, we can also getfield distribution of the defect mode. We used FDTD method combined with PMLboundary to calculate the transmission rate of finite scale Photonic Crystal structure andresearched the relations between the transmission rate and the layers of Photonic Crystal orthe grid resolution. We demonstrated the limitation of FFT method in manipulating theshort time series, and used a new kind of method Padé approximation to solve itsuccessfully. Combined with Padé approximation we researched many two dimensionalPhotonic Crystal micro-cavities and found some of these cavities support very high qualityfactors as high as 106 level.We also calculated the band diagram of PC-Slab structure with three dimensionalFDTD method plus PML, Bloch and Mirror boundaries and used the "Light-Line" to filterout the leaky modes which are not supported by the slab. We completed the first twoprocedures in designing GaAs/AsGaAs based 850nm Photonic Crystal Laser and analyzedthe reason of the Padé approximation's invalidation in optimizing PC-Slab micro-cavities.We searched and assimilated materials about the fabrication of PC-Slab, and gave thedetailed fabrication procedures in making PC-Slab using Electron Beam Lithograph (EBL)and Induce Coupled Plasma (ICP) equipments. We designed and built the measurementsystems in measuring Photonic Crystal Laser and till now the coupling from the light whichwas reflect by the sample to the multi-mode fiber is a big problem. We were trying tooptimize the measurement systems in order to observe the pump light spot while reduce thelight loss of the whole system. We were improving the measurement systems of passivePhotonic Crystal, focusing on the coupling from the single-mode fiber to the 200nm thickwave-guide core layer.