Simulation and analysis of the optically pumped organic polariton device

• Main Authors: Wei-Di Kao, 高維笛
• Other Authors: Cheng-Chung Lee
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/97530378619570258008

碩士 === 國立中央大學 === 光電科學與工程學系 === 105 === In this study, we investigated the photon and exciton strong coupling phenomenon in the metal-dielectric mirror organic microcavity, and established the model to analyze the dispersion relation and PL intensity distribution of polariton states. This model based on Lidzey’s research, the polariton population is determined by following some factors: the absorption or emission of a molecular vibration, Bose-Einstein distribution, radiative pumping of polariton states, and the polariton scattering efficiency into the bottom of lower polariton branch(LPB). We proved the model correctness by simulating the intensity distribution from the Lidzey’s group. Next, polariton devices which the material of exciton is DEDOC cyanine dye was analyzed by the model. The LPB PL intensity distribution of simulation approximate experiment results. From the simulation results, the bottleneck effect is majority mechanism decreasing the PL intensity. In experiment, we can manufacture the positive detuning polariton device to decrease the bottleneck effect and raise the polariton scattering efficiency into lowest LPB state to enhance polariton population and the PL intensity.