Design And Optimization Of Purcell Cavity Enhanced Light-emitting Devices

In this work, we present a systematic study of radiative efficiency enhancement of light-emission achieved by proximity to metal nanoparticles and launch a series of simulation using FDTD solutions to analyze the influence of structural parameters and original radiative efficiency on light-emission enhancement. The simulation using FDTD solultions and the theoretically calculation are two methods adopted to measure the enhancement, they have their own advantages and can be verified by each other. A relational expression is proposed to link them and we will verify the correctness later.There are two main ingredients of plasmonics-surface plasmon polaritons and localized surface plasmons. Localized surface plasmon resonance (LSPR) is a very useful optical phenomena which can be used to enhance the light-emission. Common metal materials are noble metal like Ag and Au, usually used in the visible range but not in the near infrared region. In this work, we firstly put forward the Indium tin oxide (ITO) to enhance the light-emission in the communication band and analyze the enhancement through the two methods. Comparing the computed results and simulation results, we can obtain the optimal parameters to enhance the light-emission and verify the relational expression of this two methods.